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”).

A217762 as a simple table

na(n)
00
12
21
32
43
51
64
73
83
92
106
115
123
134
143
1510
167
175
184
195
205
2116
2211
237
246
255
267
278
2826
2917
3011
318
327
337
3410
3513
3642
3727
3817
3912
409
419
4210
4315
4421
4568
4643
4727
4818
4913
5011
5112
5215
5323
5434
55110
5669
5743
5828
5919
6015
6114
6217
6323
6436
6555
66178
67111
6869
6944
7029
7121

[0,2,1,2,3,1,4,3,3,2,6,5,3,4,3,10,7,5,4,5,5,16,11,
 7,6,5,7,8,26,17,11,8,7,7,10,13,42,27,17,12,9,9,10,
 15,21,68,43,27,18,13,11,12,15,23,34,110,69,43,28,
 19,15,14,17,23,36,55,178,111,69,44,29,21]