A014309 - cp's OEIS frontend

A014309 a(n) = (n+2)(n+1)(n^2 + 7*n - 12)/24.

n	a(n)
1	-1
2	3
3	15
4	40
5	84
6	154
7	258
8	405
9	605
10	869
11	1209
12	1638
13	2170
14	2820
15	3604
16	4539
17	5643
18	6935
19	8435
20	10164
21	12144
22	14398
23	16950
24	19825
25	23049
26	26649
27	30653
28	35090
29	39990
30	45384
31	51304
32	57783
33	64855
34	72555

[-1, 3, 15, 40, 84, 154, 258, 405, 605, 869, 1209, 1638, 2170, 2820, 3604, 4539, 5643, 6935, 8435, 10164, 12144, 14398, 16950, 19825, 23049, 26649, 30653, 35090, 39990, 45384, 51304, 57783, 64855, 72555]

cp's OEIS Frontend

A014309 a(n) = (n+2)(n+1)(n^2 + 7*n - 12)/24.

Table of values

List of values

cp's OEIS Frontend

A014309 a(n) = (n+2)*(n+1)*(n^2 + 7*n - 12)/24.

Table of values

List of values

A014309 a(n) = (n+2)(n+1)(n^2 + 7*n - 12)/24.