%I #14 Jan 13 2022 01:31:47
%S 1,2,12,100,1080,14406,229376,4251528,90000000,2143588810,56757583872,
%T 1654301902188,52644347205632,1816448730468750,67553994410557440,
%U 2694045224950414864,114692890480116793344,5191945444217181018258
%N a(n) = (n*(n+1)^(n-1) + 0^n)/(n+1).
%H Milan Janjic, <a href="http://www.pmfbl.org/janjic/">Enumerative Formulas for Some Functions on Finite Sets</a>
%F Main subdiagonal of A085388.
%F a(n) = A055865(n), n>1. - _R. J. Mathar_, Sep 12 2008
%F a(n) = [x^n] x*(1 - x)/(1 - x - n*x). - _Ilya Gutkovskiy_, Oct 02 2017
%Y Cf. A053506, A085390.
%K easy,nonn
%O 1,2
%A _Paul Barry_, Jun 30 2003