A287053 Number of perfect matchings in the graph P_2 X P_9 X P_n.
1, 55, 87362, 54003765, 43402320448, 32567565264292, 24976513162427653, 19056798015394695543, 14569902220123180849570, 11135886394033736561250816, 8513244230416326065909810345, 6508281831123403112229534915956, 4975689584055269435866523080540937
Offset: 0
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 0..120
- Eric Weisstein's World of Mathematics, Perfect Matching
- Wikipedia, Matching (graph theory)
Crossrefs
Column k=9 of A181206.