A213501 - OEIS

A213501 as a simple table

n	a(n)
0	0
1	4
2	16
3	45
4	94
5	172
6	281
7	433
8	626
9	875
10	1177
11	1547
12	1981
13	2497
14	3087
15	3772
16	4543
17	5421
18	6396
19	7492
20	8695
21	10032
22	11488
23	13090
24	14822
25	16714
26	18746
27	20951
28	23308
29	25850
30	28555
31	31459
32	34536
33	37825
34	41299
35	44997
36	48891
37	53023
38	57361
39	61950
40	66757
41	71827

[0,4,16,45,94,172,281,433,626,875,1177,1547,1981, 2497,3087,3772,4543,5421,6396,7492,8695,10032, 11488,13090,14822,16714,18746,20951,23308,25850, 28555,31459,34536,37825,41299,44997,48891,53023, 57361,61950,66757,71827]