A374806 - cp's OEIS frontend

A374806 a(n) is the smallest number which can be represented as the sum of 3 distinct nonzero triangular numbers in exactly n ways, or -1 if no such number exists.

n	a(n)
1	10
2	19
3	37
4	52
5	82
6	109
7	136
8	241
9	226
10	217
11	247
12	364
13	427
14	457
15	541
16	532
17	577
18	637
19	961
20	721
21	787
22	1066
23	1102
24	1381
25	1267
26	1564
27	1192
28	1396
29	1816
30	1501
31	1612
32	1927
33	1942
34	2242
35	1792
36	2842
37	2587
38	2557
39	2422
40	2866
41	2887
42	3181
43	3271
44	3412
45	4126

[10, 19, 37, 52, 82, 109, 136, 241, 226, 217, 247, 364, 427, 457, 541, 532, 577, 637, 961, 721, 787, 1066, 1102, 1381, 1267, 1564, 1192, 1396, 1816, 1501, 1612, 1927, 1942, 2242, 1792, 2842, 2587, 2557, 2422, 2866, 2887, 3181, 3271, 3412, 4126]

cp's OEIS Frontend

A374806 a(n) is the smallest number which can be represented as the sum of 3 distinct nonzero triangular numbers in exactly n ways, or -1 if no such number exists.

Table of values

List of values