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”).

A056818 as a simple table

na(n)
11
25
37
410
511
613
717
819
920
1021
1123
1225
1326
1429
1531
1634
1735
1837
1939
2040
2141
2242
2343
2447
2549
2650
2752
2853
2955
3057
3158
3259
3361
3463
3565
3667
3768
3870
3971
4073
4174
4277
4378
4479
4580
4682
4783
4884
4985
5089
5191
5293
5395
5497
55100
56101
57103
58104
59105
60106
61107
62109
63110
64111
65113
66114

[1,5,7,10,11,13,17,19,20,21,23,25,26,29,31,34,35,
 37,39,40,41,42,43,47,49,50,52,53,55,57,58,59,61,
 63,65,67,68,70,71,73,74,77,78,79,80,82,83,84,85,
 89,91,93,95,97,100,101,103,104,105,106,107,109,
 110,111,113,114]