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A178971 as a simple table

na(n)
11
22
33
44
55
66
79
810
912
1015
1124
1225
1335
1437
1546
1651
1753
1875
1998
20112
21115
22172
23251
24271
25329
26500
271158
281330
291430
302034
313121
324795
334802
344816
355185
367407
3717690
3818236
3919140
4042613
4146126
4266325
43161209
44217506
45252191
46966512
47997515

[1,2,3,4,5,6,9,10,12,15,24,25,35,37,46,51,53,75,
 98,112,115,172,251,271,329,500,1158,1330,1430,
 2034,3121,4795,4802,4816,5185,7407,17690,18236,
 19140,42613,46126,66325,161209,217506,252191,
 966512,997515]