login

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

A331594 as a simple table

na(n)
10
20
30
40
50
61
70
80
91
102
110
121
130
143
150
160
170
180
190
202
211
224
230
241
252
265
271
283
290
301
310
320
332
346
351
361
370
387
393
402
410
422
430
444
450
468
470
481
493
500
514
525
530
541
550
563
575
589
590
602
610
6210
631
640
651
663
670
686
696
701
710
721
730
7411
751
767
772
784
790
802
811
8212
830
843
852
8613
877
884
890
902
911
928
938
9414
953
961
970
980
992
1002
1010
1025
1030
1045
1050

[0,0,0,0,0,1,0,0,1,2,0,1,0,3,0,0,0,0,0,2,1,4,0,1,
 2,5,1,3,0,1,0,0,2,6,1,1,0,7,3,2,0,2,0,4,0,8,0,1,3,
 0,4,5,0,1,0,3,5,9,0,2,0,10,1,0,1,3,0,6,6,1,0,1,0,
 11,1,7,2,4,0,2,1,12,0,3,2,13,7,4,0,2,1,8,8,14,3,1,
 0,0,2,2,0,5,0,5,0]