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A093314 Number of permutations s_1,s_2,...,s_n of 1,2,...,n with s_1 = 3 and such that for all j=1,2,...,n, s_j divides Sum_{i=1..j} s_i. 2
0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 12, 20, 20, 1, 163, 55 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,35
COMMENTS
The beginning elements of the permutation are 3,1,(either 2 or 4),...
The total number of permutations with this property is given in A067957.
LINKS
Matthijs Coster, Sequences
Matthijs Coster, Problem 2001/3-A of the Universitaire Wiskunde Competitie, Nieuw Arch. Wisk. 5/3 (2002), 92-94.
CROSSREFS
Sequence in context: A331258 A104198 A360529 * A175765 A138166 A208273
KEYWORD
nonn,more
AUTHOR
Matthijs Coster, Apr 26 2004
STATUS
approved

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Last modified August 30 21:29 EDT 2024. Contains 375550 sequences. (Running on oeis4.)