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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.

A374983 a(n) is the numerator of Sum_{k = 1..n} 1 / (k*A374663(k)).

Table of values

n a(n)
0 0
1 1
2 3
3 11
4 47
5 1199
6 241199
7 9696481199
8 11752718467440661199
9 15347376819435640471203267700016821199
10 23554197523775043569951631809272942045755944094320810352530343995293765199

List of values

[0, 1, 3, 11, 47, 1199, 241199, 9696481199, 11752718467440661199, 15347376819435640471203267700016821199, 23554197523775043569951631809272942045755944094320810352530343995293765199]

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

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