A048159 - cp's OEIS frontend

A048159 Triangle giving a(n,k) = number of (n,k) labeled Greg trees (n >= 2, 0 <= k <= n-2).

n	a(n)
2	1
3	3
4	1
5	16
6	13
7	3
8	125
9	171
10	85
11	15
12	1296
13	2551
14	2005
15	735
16	105
17	16807
18	43653
19	47586
20	26950
21	7875
22	945
23	262144
24	850809
25	1195383
26	924238
27	412650
28	100485
29	10395
30	4782969
31	18689527
32	32291463
33	31818045
34	19235755
35	7113645
36	1486485
37	135135

[1, 3, 1, 16, 13, 3, 125, 171, 85, 15, 1296, 2551, 2005, 735, 105, 16807, 43653, 47586, 26950, 7875, 945, 262144, 850809, 1195383, 924238, 412650, 100485, 10395, 4782969, 18689527, 32291463, 31818045, 19235755, 7113645, 1486485, 135135]

cp's OEIS Frontend

A048159 Triangle giving a(n,k) = number of (n,k) labeled Greg trees (n >= 2, 0 <= k <= n-2).

Table of values

List of values