cp's OEIS Frontend

A093315 Number of permutations s_1,s_2,...,s_n of 1,2,...,n with s_1 = 4 and such that for all j=1,2,...,n, s_j divides Sum_{i=1..j} s_i.

%I A093315 #7 Feb 05 2019 18:45:19
%S A093315 0,0,0,1,2,2,2,0,0,0,0,1,1,0,1,1,1,0,0,0,0,0,0,6,8,3,14,12,18,13,14,6,
%T A093315 26,13,198,152,220,118,1033,807
%N A093315 Number of permutations s_1,s_2,...,s_n of 1,2,...,n with s_1 = 4 and such that for all j=1,2,...,n, s_j divides Sum_{i=1..j} s_i.
%C A093315 The beginning elements of the permutation are 4, (either 1 or 2), ...
%C A093315 The total number of permutations with this property is given in A067957.
%H A093315 Matthijs Coster, <a href="http://www.coster.demon.nl/sequences.htm">Sequences</a>
%H A093315 Matthijs Coster, <a href="http://www.nieuwarchief.nl/serie5/pdf/naw5-2002-03-1-092.pdf">Problem 2001/3-A of the Universitaire Wiskunde Competitie</a>, Nieuw Arch. Wisk. 5/3 (2002), 92-94.
%Y A093315 Cf. A067957, A093313, A093315.
%K A093315 nonn,more
%O A093315 1,5
%A A093315 _Matthijs Coster_, Apr 26 2004