login

A033439 as a simple table

na(n)
00
10
21
33
46
510
615
721
827
934
1042
1151
1261
1372
1484
1596
16109
17123
18138
19154
20171
21189
22207
23226
24246
25267
26289
27312
28336
29360
30385
31411
32438
33466
34495
35525
36555
37586
38618
39651
40685
41720
42756
43792
44829
45867
46906
47946
48987
491029
501071
511114
521158
531203
541249

[0,0,1,3,6,10,15,21,27,34,42,51,61,72,84,96,109,
 123,138,154,171,189,207,226,246,267,289,312,336,
 360,385,411,438,466,495,525,555,586,618,651,685,
 720,756,792,829,867,906,946,987,1029,1071,1114,
 1158,1203,1249]