A290368 Reduced denominators of the Kirchhoff sum index for the n-halved cube graph.

1, 1, 1, 3, 6, 270, 45, 63, 1260, 31500, 3150, 155925, 103950

Offset

1,4

Links

Table of n, a(n) for n=1..13.

Eric Weisstein's World of Mathematics, Halved Cube Graph

Eric Weisstein's World of Mathematics, Kirchhoff Sum Index

Crossrefs

Cf. A290367 (numerators).

Sequence in context: A291126 A083149 A348361 * A068375 A126297 A157540

Adjacent sequences: A290365 A290366 A290367 * A290369 A290370 A290371

Keyword

nonn,frac,more

Author

Eric W. Weisstein, Jul 28 2017

Status

approved