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”).

A279818 as a simple table

na(n)
11
21
32
42
54
64
78
88
916
109
119
1218
1328
1438
1543
1618
1753
1814
1922
2010
217
227
2314
2428
2568
2676
2739
2839
2951
3019
3155
3220
3314
3435
3543
3649
3786
3896
3993
4096
41117
4241
4350
4430
4527
4651
4750
4840
4940
5044
5152
5263
5372
5462
5570
5649
57146
58130
5950
6050
6155
6265
63130
6454
65139
66157
67156
68172
69109
70131

[1,1,2,2,4,4,8,8,16,9,9,18,28,38,43,18,53,14,22,
 10,7,7,14,28,68,76,39,39,51,19,55,20,14,35,43,49,
 86,96,93,96,117,41,50,30,27,51,50,40,40,44,52,63,
 72,62,70,49,146,130,50,50,55,65,130,54,139,157,
 156,172,109,131]