A098638 - cp's OEIS frontend

A098638 Consider the family of directed multigraphs enriched by the species of odd sets. Sequence gives number of those multigraphs with n labeled loops and arcs.

n	a(n)
0	1
1	2
2	13
3	164
4	3127
5	82600
6	2845775
7	122820136
8	6446913953
9	402413160952
10	29343933156485
11	2464029760993520
12	235446319553848087
13	25346231173047308256
14	3047931031445529965527
15	406412844141860523543392
16	59704680455100785101683457
17	9608818815170839730520275488

[1, 2, 13, 164, 3127, 82600, 2845775, 122820136, 6446913953, 402413160952, 29343933156485, 2464029760993520, 235446319553848087, 25346231173047308256, 3047931031445529965527, 406412844141860523543392, 59704680455100785101683457, 9608818815170839730520275488]

cp's OEIS Frontend

A098638 Consider the family of directed multigraphs enriched by the species of odd sets. Sequence gives number of those multigraphs with n labeled loops and arcs.

Table of values

List of values