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”).

A254044 as a simple table

na(n)
11
21
32
42
51
63
73
82
93
102
112
123
132
141
154
164
173
184
195
203
213
223
232
244
253
263
275
283
292
304
315
322
332
345
353
363
374
382
393
403
411
425
434
444
454
465
474
484
494
503
513
524
534
545
555
565
575
584
593
602
613
623
634
644
653
667
674
682
693
703
714
724
733
743
754
764
773
785
795
805
816
825
833
844
855
862
875
884
894
905
915
925
935
945
952
965
977
982
993
1004
1015
1025
1036
1043
1056
1065
1073
1086
1093
1104
1115
1125
1132
1147
1155
1163
1175
1182
1193
1205
1217
1221
1234
1246
1255
1265
1273
1284

[1,1,2,2,1,3,3,2,3,2,2,3,2,1,4,4,3,4,5,3,3,3,2,4,
 3,3,5,3,2,4,5,2,2,5,3,3,4,2,3,3,1,5,4,4,4,5,4,4,4,
 3,3,4,4,5,5,5,5,4,3,2,3,3,4,4,3,7,4,2,3,3,4,4,3,3,
 4,4,3,5,5,5,6,5,3,4,5,2,5,4,4,5,5,5,5,5,2,5,7,2,3,
 4,5,5,6,3,6,5,3,6,3,4,5,5,2,7,5,3,5,2,3,5,7,1,4,6,
 5,5,3,4]