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A149200 as a simple table

na(n)
01
11
24
310
438
5133
6512
72022
88128
933730
10141324
11602890
122601778
1311334514
1449900585
15221172359
16987885412
174439103756
1820057110137
1991101700558
20415588883336
211904000032055
228755606765089
2340402666357108
24187042392647003
25868419079537612
264043169630348568
2718871591885594103

[1,1,4,10,38,133,512,2022,8128,33730,141324,
 602890,2601778,11334514,49900585,221172359,
 987885412,4439103756,20057110137,91101700558,
 415588883336,1904000032055,8755606765089,
 40402666357108,187042392647003,868419079537612,
 4043169630348568,18871591885594103]