login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A026736 as a simple table

na(n)
01
11
21
31
42
51
61
73
83
91
101
115
126
134
141
151
166
1711
1810
195
201
211
227
2322
2421
2515
266
271
281
298
3029
3143
3236
3321
347
351
361
379
3837
3994
4079
4157
4228
438
441
451
4610
4746
48131
49173
50136
5185
5236
539
541
551
5611
5756
58177
59398
60309
61221
62121
6345
6410
651
661
6712
6867
69233
70575
71707
72530
73342
74166
7555
7611
771

[1,1,1,1,2,1,1,3,3,1,1,5,6,4,1,1,6,11,10,5,1,1,7,
 22,21,15,6,1,1,8,29,43,36,21,7,1,1,9,37,94,79,57,
 28,8,1,1,10,46,131,173,136,85,36,9,1,1,11,56,177,
 398,309,221,121,45,10,1,1,12,67,233,575,707,530,
 342,166,55,11,1]