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A091479 Number of graphs with n nodes. Nodes and edges labeled each from their own label set. 1
1, 2, 16, 1957, 9864101, 3554627472076, 138879579704209680022, 828772446866981044847857913441, 1011182700521015817607065606491025592595137 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..9.

FORMULA

a(n) = A000522(A000217(n-1)). - Gerald McGarvey, Nov 17 2007

CROSSREFS

Row sums of A091478. Cf. A006125.

Sequence in context: A102103 A326974 A060597 * A016031 A001309 A132569

Adjacent sequences:  A091476 A091477 A091478 * A091480 A091481 A091482

KEYWORD

nonn

AUTHOR

Christian G. Bower, Jan 13 2004

STATUS

approved

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Last modified January 23 16:48 EST 2020. Contains 331173 sequences. (Running on oeis4.)