A024455 - OEIS

A024455 as a simple table

n	a(n)
1	0
2	2
3	4
4	7
5	11
6	17
7	23
8	30
9	39
10	50
11	61
12	74
13	88
14	104
15	121
16	140
17	160
18	182
19	204
20	228
21	254
22	282
23	312
24	343
25	376
26	409
27	444
28	480
29	519
30	561
31	604
32	648
33	695
34	743
35	793
36	845
37	898
38	954
39	1011
40	1069
41	1130
42	1192
43	1256

[0,2,4,7,11,17,23,30,39,50,61,74,88,104,121,140, 160,182,204,228,254,282,312,343,376,409,444,480, 519,561,604,648,695,743,793,845,898,954,1011,1069, 1130,1192,1256]