A045906 - cp's OEIS frontend

A045906 Numbers of nonisomorphic systems of catafusenes (see Cyvin et al. (1994) for precise definition).

n	a(n)
0	1
1	1
2	4
3	12
4	51
5	205
6	907
7	4000
8	18048
9	81719
10	373104
11	1710740
12	7882346
13	36457711
14	169252176
15	788326910
16	3683071949
17	17255713627
18	81056265252
19	381668770108
20	1801189604231
21	8517995996495
22	40360819400887
23	191589552910532

[1, 1, 4, 12, 51, 205, 907, 4000, 18048, 81719, 373104, 1710740, 7882346, 36457711, 169252176, 788326910, 3683071949, 17255713627, 81056265252, 381668770108, 1801189604231, 8517995996495, 40360819400887, 191589552910532]

cp's OEIS Frontend

A045906 Numbers of nonisomorphic systems of catafusenes (see Cyvin et al. (1994) for precise definition).

Table of values

List of values