A087965 - OEIS

A087965 as a simple table

n	a(n)
1	2
2	4
3	16
4	36
5	120
6	256
7	456
8	1296
9	2556
10	2704
11	3816
12	3856
13	4356
14	5544
15	6480
16	8008
17	9216
18	10440
19	10620
20	11952
21	16212
22	22896
23	23436
24	26320
25	26796
26	27840
27	28680
28	35208
29	43056
30	44100
31	47520
32	47880
33	49680
34	51120
35	57240
36	61920
37	62568
38	63168
39	63936

[2,4,16,36,120,256,456,1296,2556,2704,3816,3856, 4356,5544,6480,8008,9216,10440,10620,11952,16212, 22896,23436,26320,26796,27840,28680,35208,43056, 44100,47520,47880,49680,51120,57240,61920,62568, 63168,63936]

[2,4,16,36,120,256,456,1296,2556,2704,3816,3856,
 4356,5544,6480,8008,9216,10440,10620,11952,16212,
 22896,23436,26320,26796,27840,28680,35208,43056,
 44100,47520,47880,49680,51120,57240,61920,62568,
 63168,63936]