A260039 - cp's OEIS frontend

A260039 Triangle read by rows giving numbers B(n,k) arising in the enumeration of doubly rooted tree maps.

n	a(n)
1	1
2	8
3	2
4	72
5	30
6	3
7	720
8	380
9	72
10	4
11	7780
12	4690
13	1245
14	140
15	5
16	89040
17	58254
18	19152
19	3192
20	240
21	6
22	1064644
23	734496
24	279972
25	60648
26	7000
27	378
28	7
29	13173216
30	9416688
31	3997584
32	1046832
33	162000
34	13752
35	560
36	8
37	167522976
38	122687334
39	56488950
40	17086608
41	3285990
42	382140
43	24885
44	792
45	9

[1, 8, 2, 72, 30, 3, 720, 380, 72, 4, 7780, 4690, 1245, 140, 5, 89040, 58254, 19152, 3192, 240, 6, 1064644, 734496, 279972, 60648, 7000, 378, 7, 13173216, 9416688, 3997584, 1046832, 162000, 13752, 560, 8, 167522976, 122687334, 56488950, 17086608, 3285990, 382140, 24885, 792, 9]

cp's OEIS Frontend

A260039 Triangle read by rows giving numbers B(n,k) arising in the enumeration of doubly rooted tree maps.

Table of values

List of values