A319391 - cp's OEIS frontend

A319391 a(n) = (1 + 2)^3 + (4 + 5)^6 + (7 + 8)^9 + (10 + 11)^12 + ... + (up to n).

n	a(n)
1	1
2	3
3	27
4	31
5	36
6	531468
7	531475
8	531483
9	38443890843
10	38443890853
11	38443890864
12	7355865955277484
13	7355865955277497
14	7355865955277511
15	2954320062416788976127
16	2954320062416788976143
17	2954320062416788976160
18	2154028838712789034859190336

[1, 3, 27, 31, 36, 531468, 531475, 531483, 38443890843, 38443890853, 38443890864, 7355865955277484, 7355865955277497, 7355865955277511, 2954320062416788976127, 2954320062416788976143, 2954320062416788976160, 2154028838712789034859190336]

cp's OEIS Frontend

A319391 a(n) = (1 + 2)^3 + (4 + 5)^6 + (7 + 8)^9 + (10 + 11)^12 + ... + (up to n).

Table of values

List of values