A378170 - cp's OEIS frontend

A378170 Number of subsets of the first n nonzero tetrahedral numbers whose sum is a nonzero tetrahedral number.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	8
7	11
8	13
9	19
10	34
11	45
12	72
13	113
14	171
15	262
16	388
17	638
18	1128
19	1928
20	3370
21	5584
22	9691
23	17129
24	30493
25	54785
26	94510
27	169817
28	308491
29	559176
30	1019487
31	1816043
32	3333698
33	6153695
34	11384025
35	21100254
36	38262081
37	71096456
38	132675454
39	247900732
40	463959984

[1, 2, 3, 5, 7, 8, 11, 13, 19, 34, 45, 72, 113, 171, 262, 388, 638, 1128, 1928, 3370, 5584, 9691, 17129, 30493, 54785, 94510, 169817, 308491, 559176, 1019487, 1816043, 3333698, 6153695, 11384025, 21100254, 38262081, 71096456, 132675454, 247900732, 463959984]

cp's OEIS Frontend

A378170 Number of subsets of the first n nonzero tetrahedral numbers whose sum is a nonzero tetrahedral number.

Table of values

List of values