A374141 - cp's OEIS frontend

A374141 a(n) is the smallest number which can be represented as the sum of two distinct nonzero hexagonal numbers in exactly n ways, or -1 if no such number exists.

n	a(n)
1	7
2	384
3	4995
4	51106
5	204805
6	483031
7	2443431
8	4674256
9	10476781
10	17272531
11	25600656
12	60765331
13	90406956
14	206602126
15	332808531
16	481676406
17	303826656
18	435211156
19	789949306
20	1406495106
21	2260173906
22	2704798281
23	3220562556
24	4435869181
25	5165053156
26	5309576106
27	9818788281

[7, 384, 4995, 51106, 204805, 483031, 2443431, 4674256, 10476781, 17272531, 25600656, 60765331, 90406956, 206602126, 332808531, 481676406, 303826656, 435211156, 789949306, 1406495106, 2260173906, 2704798281, 3220562556, 4435869181, 5165053156, 5309576106, 9818788281]

cp's OEIS Frontend

A374141 a(n) is the smallest number which can be represented as the sum of two distinct nonzero hexagonal numbers in exactly n ways, or -1 if no such number exists.

Table of values

List of values