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”).

A000037 as a simple table

na(n)
12
23
35
46
57
68
710
811
912
1013
1114
1215
1317
1418
1519
1620
1721
1822
1923
2024
2126
2227
2328
2429
2530
2631
2732
2833
2934
3035
3137
3238
3339
3440
3541
3642
3743
3844
3945
4046
4147
4248
4350
4451
4552
4653
4754
4855
4956
5057
5158
5259
5360
5461
5562
5663
5765
5866
5967
6068
6169
6270
6371
6472
6573
6674
6775
6876
6977
7078
7179
7280
7382
7483
7584
7685
7786
7887
7988
8089
8190
8291
8392
8493
8594
8695
8796
8897
8998
9099

[2,3,5,6,7,8,10,11,12,13,14,15,17,18,19,20,21,22,
 23,24,26,27,28,29,30,31,32,33,34,35,37,38,39,40,
 41,42,43,44,45,46,47,48,50,51,52,53,54,55,56,57,
 58,59,60,61,62,63,65,66,67,68,69,70,71,72,73,74,
 75,76,77,78,79,80,82,83,84,85,86,87,88,89,90,91,
 92,93,94,95,96,97,98,99]