A199139 Number of assembly graphs with n rigid vertices and assembly number 2.

0, 0, 1, 9, 122, 1701

Offset

2,4

Links

Table of n, a(n) for n=2..7.

Jonathan Burns, Assembly Graph Words - Single Transverse Component (Counts)

Jonathan Burns, Egor Dolzhenko, Natasa Jonoska, Tilahun Muche, and Masahico Saito, Four-Regular Graphs with Rigid Vertices Associated to DNA Recombination, Discrete Applied Mathematics, Volume 161, Issues 10-11, July 2013, Pages 1378-1394.

Crossrefs

Sequence in context: A295372 A293284 A087584 * A365848 A295095 A295549

Adjacent sequences: A199136 A199137 A199138 * A199140 A199141 A199142

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 03 2011

Status

approved