A321159 - cp's OEIS frontend

A321159 Numbers that have exactly 9 representations as a k-gonal number, P(n,k) = n((k-2)n - (k-4))/2, k and n >= 3.

n	a(n)
1	27405
2	126225
3	194481
4	201825
5	273105
6	478401
7	538461
8	615681
9	718641
10	859600
11	862785
12	1056160
13	1187145
14	1257201
15	1328481
16	1413126
17	1439361
18	1532601
19	1540540
20	1619541
21	1625625
22	1708785
23	1842400
24	1849926
25	1890945

[27405, 126225, 194481, 201825, 273105, 478401, 538461, 615681, 718641, 859600, 862785, 1056160, 1187145, 1257201, 1328481, 1413126, 1439361, 1532601, 1540540, 1619541, 1625625, 1708785, 1842400, 1849926, 1890945]

cp's OEIS Frontend

A321159 Numbers that have exactly 9 representations as a k-gonal number, P(n,k) = n((k-2)n - (k-4))/2, k and n >= 3.

Table of values

List of values

cp's OEIS Frontend

A321159 Numbers that have exactly 9 representations as a k-gonal number, P(n,k) = n*((k-2)*n - (k-4))/2, k and n >= 3.

Table of values

List of values

A321159 Numbers that have exactly 9 representations as a k-gonal number, P(n,k) = n((k-2)n - (k-4))/2, k and n >= 3.