login

A239438 as a simple table

na(n)
11
21
33
44
56
67
710
812
915
1019
1122
1226
1331
1435
1540
1646
1751
1857
1964
2070
2177
2285
2392
24100
25109
26117
27126
28136
29145
30155
31166
32176
33187
34199
35210
36222
37235
38247
39260
40274
41287
42301
43316
44330
45345
46361
47376
48392
49409

[1,1,3,4,6,7,10,12,15,19,22,26,31,35,40,46,51,57,
 64,70,77,85,92,100,109,117,126,136,145,155,166,
 176,187,199,210,222,235,247,260,274,287,301,316,
 330,345,361,376,392,409]