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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.

A265042 a(n) = the unique number k such that T(p + n) == k mod p for all primes p, where T(n) = A000798(n) = number of topologies on n points.

Table of values

n a(n)
0 2
1 7
2 51
3 634
4 12623

List of values

[2, 7, 51, 634, 12623]

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

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