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.

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

Offset: 1

Author

Matthijs Coster, Apr 26 2004

Keywords

• nonn
• more

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

Cf. A067957, A093313, A093315.