A374809 - cp's OEIS frontend

A374809 a(n) is the smallest number which can be represented as the sum of 4 distinct nonzero tetrahedral numbers in exactly n ways, or -1 if no such number exists.

n	a(n)
1	35
2	115
3	260
4	315
5	760
6	705
7	1310
8	1824
9	2365
10	1915
11	2475
12	3335
13	6240
14	4645
15	7735
16	8455
17	12120
18	11505
19	15440
20	13026
21	17325
22	20020
23	24125
24	25575
25	26400
26	32935
27	34440
28	36575
29	40040
30	37180
31	44265
32	50400
33	55100
34	60060
35	56560
36	59160
37	60620

[35, 115, 260, 315, 760, 705, 1310, 1824, 2365, 1915, 2475, 3335, 6240, 4645, 7735, 8455, 12120, 11505, 15440, 13026, 17325, 20020, 24125, 25575, 26400, 32935, 34440, 36575, 40040, 37180, 44265, 50400, 55100, 60060, 56560, 59160, 60620]

cp's OEIS Frontend

A374809 a(n) is the smallest number which can be represented as the sum of 4 distinct nonzero tetrahedral numbers in exactly n ways, or -1 if no such number exists.

Table of values

List of values