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”).

A075757 as a simple table

na(n)
11
22
33
43
53
63
78
87
910
109
1117
127
139
148
1519
167
1711
1811
1915
2015
2111
2214
237
2420
2531
2613
277
280
2913
300
3125
3220
337
3423
3523
3621
377
3819
3921
400
4152
427
4323
4413
4513
4617
4750
488
4976
5019
5151
5241
537
54107
5557
5627
5755
580
5955
600
6127
6229
630
6479
650
6645
6761
6848
6955
7039
7180
7256
73153
7476
750
7635
7711

[1,2,3,3,3,3,8,7,10,9,17,7,9,8,19,7,11,11,15,15,
 11,14,7,20,31,13,7,0,13,0,25,20,7,23,23,21,7,19,
 21,0,52,7,23,13,13,17,50,8,76,19,51,41,7,107,57,
 27,55,0,55,0,27,29,0,79,0,45,61,48,55,39,80,56,
 153,76,0,35,11]