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A130891 as a simple table

na(n)
00
11
22
30
44
50
66
70
88
99
1010
112
1212
132
1414
1515
1616
172
1818
192
2020
2121
2222
234
2424
2525
2626
2727
2828
294
3030
316
3232
3333
3434
3535
3636
376
3838
3939
4040
418
4242
438
4444
4545
4646
478
4848
4949
5050
5151
5252
5310
5454
5555
5656
5757
5858
5910
6060
6112
6262
6363
6464
6565
6666
6712
6868

[0,1,2,0,4,0,6,0,8,9,10,2,12,2,14,15,16,2,18,2,20,
 21,22,4,24,25,26,27,28,4,30,6,32,33,34,35,36,6,38,
 39,40,8,42,8,44,45,46,8,48,49,50,51,52,10,54,55,
 56,57,58,10,60,12,62,63,64,65,66,12,68]