cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A278455 Smallest prime that takes n steps to get to 1, each step reducing the prime by the largest power of 2 possible, with the resultant number a prime.

Table of values

n a(n)
1 3
2 7
3 23
4 61
5 317
6 829
7 274973
8 1844867
9 29363357
10 275684009603
11 2252075497694851
12 1155173580104541827
13 155838096186773789746819
14 649037426474450432457432557949469
15 348449144376078413060946030467563206480413

List of values

[3, 7, 23, 61, 317, 829, 274973, 1844867, 29363357, 275684009603, 2252075497694851, 1155173580104541827, 155838096186773789746819, 649037426474450432457432557949469, 348449144376078413060946030467563206480413]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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