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”).

A377899 as a simple table

na(n)
10
20
30
41
51
61
71
82
92
103
113
123
133
144
154
165
175
185
195
206
216
227
237
247
258
268
279
289
299
3010
3110
3210
3311
3411
3512
3612
3712
3813
3913
4014
4114
4214
4314
4415
4515
4616
4716
4816
4917
5017
5118
5218
5318
5419
5519
5620
5720
5821
5921
6021
6121
6222
6322
6423
6523
6624
6724
6824
6925
7025
7125
7226
7326
7426
7527
7627
7728
7828
7928
8029
8129
8230
8330
8430
8531
8631
8732
8832
8932
9033
9133
9234
9334
9435
9535
9636
9736
9836
9937
10037
10137

[0,0,0,1,1,1,1,2,2,3,3,3,3,4,4,5,5,5,5,6,6,7,7,7,
 8,8,9,9,9,10,10,10,11,11,12,12,12,13,13,14,14,14,
 14,15,15,16,16,16,17,17,18,18,18,19,19,20,20,21,
 21,21,21,22,22,23,23,24,24,24,25,25,25,26,26,26,
 27,27,28,28,28,29,29,30,30,30,31,31,32,32,32,33,
 33,34,34,35,35,36,36,36,37,37,37]