A022777 - OEIS

A022777 as a simple table

n	a(n)
1	1
2	3
3	7
4	13
5	20
6	29
7	40
8	53
9	67
10	83
11	101
12	121
13	142
14	165
15	190
16	216
17	244
18	274
19	306
20	339
21	374
22	411
23	450
24	490
25	532
26	576
27	622
28	669
29	718
30	769
31	821
32	875
33	931
34	989
35	1048
36	1109
37	1172
38	1237
39	1303
40	1371
41	1441
42	1513
43	1586
44	1661
45	1738
46	1816
47	1896
48	1978
49	2062

[1,3,7,13,20,29,40,53,67,83,101,121,142,165,190, 216,244,274,306,339,374,411,450,490,532,576,622, 669,718,769,821,875,931,989,1048,1109,1172,1237, 1303,1371,1441,1513,1586,1661,1738,1816,1896,1978, 2062]