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A350751
Number of unlabeled strongly connected oriented graphs with n arcs.
3
1, 0, 0, 1, 1, 3, 7, 27, 120, 590, 3172, 18291, 112597, 731646, 5002261, 35805035, 267427870, 2077890719, 16753007782, 139843832074, 1206213748404, 10731971520412, 98340872850392, 926788397662602, 8971598464914888, 89105060389927172, 907030917078092542
OFFSET
0,6
PROG
(PARI) A350751seq(20) \\ See PARI link in A350489 for program code.
CROSSREFS
Column sums of A350750.
Sequence in context: A246313 A003083 A347639 * A062795 A062363 A333362
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Jan 14 2022
STATUS
approved