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A025666 as a simple table

na(n)
10
20
31
40
51
62
70
81
92
100
113
121
132
140
153
161
174
182
190
203
211
224
232
240
255
263
271
284
292
300
315
323
331
346
354
362
370
385
393
401
416
424
432
447
450
465
473
481
496
504
512
527
530
545
553
568
571
586
594
602
617
620
635
643
658
661
676
684
699
702
717
720
735
743
758
761
776
784
799
802
817
820
835
8410
853
868
871
886
894
909
912
927
930
945
9510
963
978
981
996
10011
1014
1029
1032
1047
1050
1065

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