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A131945 as a simple table

na(n)
01
11
22
32
44
55
68
710
815
918
1026
1132
1245
1355
1474
1590
16119
17145
18188
19228
20291
21351
22442
23532
24664
25796
26982
271172
281435
291708
302076
312462
322972
333512
344214
354966
365929
376965
388272
399688
4011457
4113383
4215762
4318362
4421543
4525031
4629264
4733922
4839533
4945717

[1,1,2,2,4,5,8,10,15,18,26,32,45,55,74,90,119,145,
 188,228,291,351,442,532,664,796,982,1172,1435,
 1708,2076,2462,2972,3512,4214,4966,5929,6965,8272,
 9688,11457,13383,15762,18362,21543,25031,29264,
 33922,39533,45717]