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.
%I A079609 #15 Aug 21 2025 22:06:31
%S A079609 0,1,10,125,61688,2126495,4874404106,306986431845,1919652428481928,
%T A079609 2459993170305526730730,332043836975044402745021,
%U A079609 1428874762393255348701231773647,57345183115624820200016928713263146
%N A079609 a(n) = (b(p)-2)/p where b(k) denotes Bell numbers and p = prime(n).
%H A079609 Amiram Eldar, <a href="/A079609/b079609.txt">Table of n, a(n) for n = 1..106</a>
%F A079609 a(p) = ((Sum_{k>=0} k^p/k!)/e-2)/p.
%t A079609 Table[(BellB[(p = Prime[i])] - 2)/p, {i, 1, 10}] (* _Amiram Eldar_, Nov 23 2019 *)
%Y A079609 Cf. A000110.
%K A079609 nonn
%O A079609 1,3
%A A079609 _Benoit Cloitre_, Jan 28 2003