Saturday, December 30, 2023

First digits after the decimal point

Éric Angelini is not at the moment updating his latest sequence suggestion, so I will post my extension (assuming a 1, 2 start) here:

1, 2, 11, 5, 42, 4, 94, 7, 74, 20, 27, 129, 101, 777, 7618, 1124, 14753, 1218, 82554, 8156, 98795, 3206, 32451, 499, 15377, 2366, 15386, 1868, 121402, 2419, 199254, 5819, 292038, 9247, 316636, 13812, 43621, 38327, 36725, 95818, 260900, 20134, 771711, 58457, 54269, 92835, 60177, 55065, 91504, 25771, 281635, 53566, 190196, 355062, 1866812, 199551, 10689395, 186879, 17482653, 95960, 54888692, 216986, 39532004, 138119, 34938527, 829143, 23731481, 189726, 7994697, 1908167, 23867906, 7480187, 31339937, 11404557, 36389852, 32664599, 23949435, 5535335, 23112591, 6504115, 6357184, 3851878, 6059094, 489221, 807416, 1650409, 2044061, 12385171, 10283218, 83028464, 807417055, 82135674, 101726454, 26620507, 261687159, 61339564, 2344003581, 48771083, 2080674423, 22994000, ...

click to enlarge

Thursday, December 21, 2023

Wednesday, December 13, 2023

A million-digit Leyland prime (third one)

After my second find, I really did not think that I would generate another example in my current search space. However, at the upper end of that space:

194968^136197+1*136197^194968 is 3-PRP!

This is now the 14th largest-known Leyland prime. Ryan Propper owns the largest 13:

19 million-digit Leyland primes (via Norman Luhn); n-th Leyland + 1 = A076980 index

Bucket list #1

My original five-piece bucket list is here with #2 here.

1. Wiener schnitzel (The Coffee Mill closed in 2014; Amber closed in 2021.)

Café Polonez: 195 Roncesvalles Ave
Catherine and I had lunch today at Café Polonez with Shelley and Denny Mylko. The restaurant is just north of Fern Ave. I of course had the pork schnitzel:

schnitzel with cole slaw, beets, carrots, and potatoes: $21.95 plus tax
Very nice!

Wednesday, December 06, 2023

Neheim-Hüsten street view

Three years ago I wrote an article about my Neheim birthhouse, captured from a distance on a bicycle-ride YouTube video. In it, I bemoaned the absence of Google's street view. Today, by chance, I noticed that Google has (from October 2022) a very limited street-view coverage of Neheim (and its 1950s-era twin town of Hüsten):

baby-blue roads have street view: click to enlarge

I was fortunate that my birthhouse was visible from Bergheimer Weg (in that 2009 blog post is a link to a 1934 photograph of the house being built):

Bergheimer Weg 16, October 2022