A301739 - cp's OEIS frontend

A301739 The number of trees with 4 nodes labeled by positive integers, where each tree's label sum is n.

n	a(n)
4	2
5	4
6	10
7	17
8	30
9	44
10	67
11	91
12	126
13	163
14	213
15	265
16	333
17	403
18	491
19	582
20	693
21	807
22	944
23	1084
24	1249
25	1418
26	1614
27	1814
28	2044
29	2278
30	2544
31	2815
32	3120
33	3430
34	3777
35	4129
36	4520
37	4917
38	5355
39	5799
40	6287
41	6781
42	7321
43	7868
44	8463
45	9065
46	9718
47	10378
48	11091
49	11812
50	12588
51	13372
52	14214
53	15064

[2, 4, 10, 17, 30, 44, 67, 91, 126, 163, 213, 265, 333, 403, 491, 582, 693, 807, 944, 1084, 1249, 1418, 1614, 1814, 2044, 2278, 2544, 2815, 3120, 3430, 3777, 4129, 4520, 4917, 5355, 5799, 6287, 6781, 7321, 7868, 8463, 9065, 9718, 10378, 11091, 11812, 12588, 13372, 14214, 15064]

cp's OEIS Frontend

A301739 The number of trees with 4 nodes labeled by positive integers, where each tree's label sum is n.

Table of values

List of values