A138464 - cp's OEIS frontend

A138464 Triangle read by rows: T(n, k) is the number of forests on n labeled nodes with k edges. T(n, k) for n >= 1 and 0 <= k <= n-1.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	3
7	1
8	6
9	15
10	16
11	1
12	10
13	45
14	110
15	125
16	1
17	15
18	105
19	435
20	1080
21	1296
22	1
23	21
24	210
25	1295
26	5250
27	13377
28	16807
29	1
30	28
31	378
32	3220
33	18865
34	76608
35	200704
36	262144
37	1
38	36
39	630
40	7056
41	55755
42	320544
43	1316574
44	3542940
45	4782969
46	1
47	45
48	990
49	14070
50	143325
51	1092105
52	6258000
53	26100000
54	72000000
55	100000000

[1, 1, 1, 1, 3, 3, 1, 6, 15, 16, 1, 10, 45, 110, 125, 1, 15, 105, 435, 1080, 1296, 1, 21, 210, 1295, 5250, 13377, 16807, 1, 28, 378, 3220, 18865, 76608, 200704, 262144, 1, 36, 630, 7056, 55755, 320544, 1316574, 3542940, 4782969, 1, 45, 990, 14070, 143325, 1092105, 6258000, 26100000, 72000000, 100000000]

cp's OEIS Frontend

A138464 Triangle read by rows: T(n, k) is the number of forests on n labeled nodes with k edges. T(n, k) for n >= 1 and 0 <= k <= n-1.

Table of values

List of values