cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A129422 Number of isomorphism classes of 6-regular loopless multigraphs of order n.

Original entry on oeis.org

0, 1, 1, 7, 16, 128, 955, 13467, 253373, 6466074, 205749149, 7943313377, 363853255012, 19485170158346, 1205488841884007, 85308028236495340, 6846462326434510551, 618498122199399056707, 62478078728492272712838, 7015617595855429187696753
Offset: 1

Views

Author

Brendan McKay, Apr 15 2007

Keywords

Comments

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

Crossrefs

Column k=6 of A333330.
Cf. A129421, A129433, A129416, A129418, A129420, A129424, A129426.

Formula

Euler transform of A129421. - Andrew Howroyd, Mar 14 2020

Extensions

a(1)=0 prepended and a(14)-a(20) from Andrew Howroyd, Mar 17 2020

A129424 Number of isomorphism classes of 7-regular loopless multigraphs of order 2n.

Original entry on oeis.org

1, 8, 271, 90913, 165134083, 861889423083, 10352781874872853, 253226977418079364874, 11542716741789258789499297, 915461016322959135074642849828
Offset: 1

Views

Author

Brendan McKay, Apr 15 2007

Keywords

Comments

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

Crossrefs

Column k=7 of A333330.
Cf. A129423, A129435, A129416, A129418, A129420, A129422, A129426.

Formula

Euler transform of A129423. - Andrew Howroyd, Mar 21 2020

Extensions

a(7)-a(10) from Andrew Howroyd, Mar 21 2020
Previous Showing 11-12 of 12 results.

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