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”).

A161535 as a simple table

na(n)
12
22
34
42
53
66
72
83
94
108
112
123
134
146
1510
162
173
184
195
208
2112
222
233
244
255
266
279
2814
292
303
314
325
336
348
3510
3616
372
383
394
405
416
427
439
4412
4518
462
473
484
495
506
517
528
5310
5414
5520
562
573
584
595
606
617
628
639
6412
6515
6622
672
683
694
705
716
727
738
749
7510
7614
7716
7824
792
803
814
825
836
847
858
869
8710
8812
8915
9018
9126
922
933
944
955

[2,2,4,2,3,6,2,3,4,8,2,3,4,6,10,2,3,4,5,8,12,2,3,
 4,5,6,9,14,2,3,4,5,6,8,10,16,2,3,4,5,6,7,9,12,18,
 2,3,4,5,6,7,8,10,14,20,2,3,4,5,6,7,8,9,12,15,22,2,
 3,4,5,6,7,8,9,10,14,16,24,2,3,4,5,6,7,8,9,10,12,
 15,18,26,2,3,4,5]