A019456 - OEIS

A019456 as a simple table

n	a(n)
0	1
1	4
2	9
3	18
4	32
5	54
6	83
7	113
8	149
9	191
10	234
11	281
12	342
13	399
14	459
15	537
16	611
17	678
18	763
19	861
20	947
21	1035
22	1151
23	1267
24	1367
25	1481
26	1611
27	1738
28	1862
29	1995
30	2140
31	2291
32	2443
33	2591
34	2751
35	2929
36	3094
37	3252
38	3439
39	3639
40	3816
41	3995
42	4211
43	4427
44	4618
45	4823
46	5055

[1,4,9,18,32,54,83,113,149,191,234,281,342,399, 459,537,611,678,763,861,947,1035,1151,1267,1367, 1481,1611,1738,1862,1995,2140,2291,2443,2591,2751, 2929,3094,3252,3439,3639,3816,3995,4211,4427,4618, 4823,5055]