A297669 Number of chordless cycles in the n X n torus grid graph.

15, 224, 1815, 28716, 886837, 46775584, 4207536351

Offset

3,1

Links

Table of n, a(n) for n=3..9.

Eric Weisstein's World of Mathematics, Chordless Cycle

Eric Weisstein's World of Mathematics, Torus Grid Graph

Crossrefs

Cf. A222199, A296527.

Sequence in context: A137916 A218696 A367863 * A171320 A078364 A209221

Adjacent sequences: A297666 A297667 A297668 * A297670 A297671 A297672

Keyword

nonn,more

Author

Eric W. Weisstein, Jan 02 2018

Extensions

a(6)-a(9) from Andrew Howroyd, Jan 08 2018

Status

approved