login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A028753 as a simple table

na(n)
12
23
35
46
57
68
710
811
912
1013
1114
1215
1317
1418
1519
1621
1722
1823
1926
2027
2128
2229
2330
2431
2532
2633
2734
2835
2937
3038
3139

[2,3,5,6,7,8,10,11,12,13,14,15,17,18,19,21,22,23,
 26,27,28,29,30,31,32,33,34,35,37,38,39]