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”).

A105427 as a simple table

na(n)
12
23
34
45
56
67
78
89
910
1011
1112
1213
1314
1416
1517
1618
1719
1820
1921
2022
2123
2224
2325
2426
2527
2628
2729
2830
2931
3032
3133
3234
3335
3436
3537
3638
3739
3840
3942
4043
4144
4245
4346
4447
4548
4649
4750
4851
4952
5053
5154
5255
5356
5457
5558
5659
5760
5861
5962
6063
6164
6265
6366
6467
6568
6669
6770
6871
6972
7073
7174
7275

[2,3,4,5,6,7,8,9,10,11,12,13,14,16,17,18,19,20,21,
 22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,
 38,39,40,42,43,44,45,46,47,48,49,50,51,52,53,54,
 55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,
 71,72,73,74,75]