A323922 Nonisomorphic catafusenes with symmetry C_s.

0, 0, 0, 1, 5, 23, 98, 393, 1600, 6486, 26694, 110818, 465890, 1978032, 8481860, 36681383, 159894915, 701898184, 3100972840, 13779678410, 61557361263, 276326335318, 1245934013926, 5640863040825, 25635343582986

Offset

1,5

Links

Table of n, a(n) for n=1..25.

S. J. Cyvin, J. Brunvoll, and B. N. Cyvin, Harary-Read numbers for catafusenes: Complete classification according to symmetry, Journal of mathematical chemistry 9.1 (1992): 19-31 and 33-38. See pages 30 and 38.

Crossrefs

Sequence in context: A140529 A055489 A109765 * A368835 A119012 A215038

Adjacent sequences: A323919 A323920 A323921 * A323923 A323924 A323925

Keyword

nonn

Author

N. J. A. Sloane, Feb 09 2019

Status

approved