A294864 - OEIS

A294864 as a simple table

n	a(n)
0	1
1	2
2	6
3	9
4	15
5	21
6	29
7	38
8	48
9	59
10	71
11	84
12	99
13	114
14	131
15	148
16	167
17	187
18	208
19	230
20	253
21	277
22	302
23	328
24	356
25	384
26	414
27	444
28	476
29	508
30	542
31	576
32	613
33	649
34	688
35	726
36	767
37	807
38	850
39	892
40	937
41	982
42	1029
43	1076
44	1125
45	1174
46	1225
47	1276
48	1329
49	1382
50	1437
51	1493
52	1550

[1,2,6,9,15,21,29,38,48,59,71,84,99,114,131,148, 167,187,208,230,253,277,302,328,356,384,414,444, 476,508,542,576,613,649,688,726,767,807,850,892, 937,982,1029,1076,1125,1174,1225,1276,1329,1382, 1437,1493,1550]