A131649 - OEIS

A131649 as a simple table

n	a(n)
3	4
4	8
5	16
6	32
7	54
8	82
9	116
10	156
11	202
12	254
13	312
14	376
15	446
16	522
17	604
18	692
19	786
20	886
21	992
22	1104
23	1222
24	1346
25	1476
26	1612
27	1754
28	1902
29	2056
30	2216
31	2382
32	2554
33	2732
34	2916
35	3106
36	3302
37	3504
38	3712
39	3926
40	4146
41	4372
42	4604
43	4842
44	5086
45	5336
46	5592
47	5854

[4,8,16,32,54,82,116,156,202,254,312,376,446,522, 604,692,786,886,992,1104,1222,1346,1476,1612,1754, 1902,2056,2216,2382,2554,2732,2916,3106,3302,3504, 3712,3926,4146,4372,4604,4842,5086,5336,5592,5854]