A047957 - OEIS

A047957 as a simple table

n	a(n)
0	1
1	4
2	12
3	23
4	37
5	52
6	74
7	107
8	143
9	183
10	223
11	262
12	311
13	373
14	435
15	500
16	562
17	623
18	697
19	789
20	884
21	975
22	1065
23	1154
24	1254
25	1371
26	1485
27	1603
28	1715
29	1828
30	1956
31	2096
32	2245
33	2397
34	2539
35	2679
36	2829
37	2991
38	3160
39	3339
40	3506
41	3665
42	3845
43	4035
44	4235
45	4447
46	4643

[1,4,12,23,37,52,74,107,143,183,223,262,311,373, 435,500,562,623,697,789,884,975,1065,1154,1254, 1371,1485,1603,1715,1828,1956,2096,2245,2397,2539, 2679,2829,2991,3160,3339,3506,3665,3845,4035,4235, 4447,4643]