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.

A336039 Numbers k such that A000081(k) is divisible by k.

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%I A336039 #20 Nov 04 2021 06:39:43
%S A336039 1,4,24,72,121,475,8744,19933,38357,41685
%N A336039 Numbers k such that A000081(k) is divisible by k.
%C A336039 No other terms below 100000. - _Mathieu Gouttenoire_, Nov 01 2021
%e A336039 24 is in the sequence because A000081(24) = 24 * 30988541.
%e A336039 72 is in the sequence because A000081(72) = 72 * 77434098197798038469129694128.
%Y A336039 Cf. A000081, A051420, A336042.
%K A336039 nonn,more
%O A336039 1,2
%A A336039 _Vaclav Kotesovec_, Jul 07 2020
%E A336039 a(10) from _Mathieu Gouttenoire_, Nov 01 2021