

A363004


Number of sequences of n distinct positive integers whose Gilbreath transform is (1, 1, ..., 1).


4



1, 1, 1, 1, 2, 7, 40, 355, 4819, 99242, 3049155, 138762035
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OFFSET

0,5


LINKS



EXAMPLE

For n = 5, the a(5) = 7 sequences are:
(1, 2, 4, 6, 8),
(1, 2, 4, 6, 10),
(1, 2, 4, 8, 6),
(1, 2, 4, 8, 10),
(1, 2, 4, 8, 12),
(1, 2, 4, 8, 14),
(1, 2, 4, 8, 16).


CROSSREFS



KEYWORD

nonn,more


AUTHOR



STATUS

approved



