login

A290980 as a simple table

na(n)
21
30
42
51
63
71
84
91
105
112
126
132
147
153
168
173
189
193
2010
213
2211
234
2412
255
2613
274
2814
295
3015
315
3216
336
3417
357
3618
376
3819
396
4020
417
4221
437
4422
459
4623
478
4824
498
5025
519
5226
539
5427
5511
5628
579
5829
5910
6030
6110
6231
6310
6432
6513
6633
6711
6834
6912
7035

[1,0,2,1,3,1,4,1,5,2,6,2,7,3,8,3,9,3,10,3,11,4,12,
 5,13,4,14,5,15,5,16,6,17,7,18,6,19,6,20,7,21,7,22,
 9,23,8,24,8,25,9,26,9,27,11,28,9,29,10,30,10,31,
 10,32,13,33,11,34,12,35]