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A129436 Number of isomorphism classes of connected 8-regular multigraphs of order n, loops allowed. 8
1, 4, 17, 149, 1934, 44821, 1631629, 89057367, 6849428873, 713780361312, 97876276145119, 17259548258350637, 3840154740252625874, 1060662127742505706789, 358584059544008234423217, 146560585570176100774010071, 71630591614693085251230481320, 41456445821273701849195905028292 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Initial terms computed using software at http://users.cecs.anu.edu.au/~bdm/nauty/

LINKS

Table of n, a(n) for n=1..18.

FORMULA

Inverse Euler transform of A129437. - Andrew Howroyd, Mar 19 2020

CROSSREFS

Column k=8 of A333397.

Cf. A129437, A129425, A005967, A085549, A129430, A129432, A129434.

Sequence in context: A041026 A072755 A320444 * A063857 A072654 A094545

Adjacent sequences:  A129433 A129434 A129435 * A129437 A129438 A129439

KEYWORD

nonn

AUTHOR

Brendan McKay, Apr 15 2007

EXTENSIONS

a(11)-a(18) added by Andrew Howroyd, Mar 21 2020

STATUS

approved

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Last modified May 26 09:37 EDT 2020. Contains 334620 sequences. (Running on oeis4.)