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 A357584 #3 Oct 05 2022 17:43:32 %S A357584 1,2,14,113,974,8727,80261,752411,7159478,68959643,671110819, %T A357584 6590605628,65253543377,650982447403,6541146713073,66186244142493, %U A357584 674352479717766,6919081221705819,71506844832390551,744627411078964199,7816971178681880479,82780294061365989320 %N A357584 Central terms of the convolution triangle of the Bell numbers (A357583). %F A357584 a(n) = A357583(2*n, n); %Y A357584 Cf. A357583. %K A357584 nonn %O A357584 0,2 %A A357584 _Peter Luschny_, Oct 05 2022