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A149455 as a simple table

na(n)
01
11
24
313
450
5182
6712
72711
810672
941470
10164102
11644580
122557808
1310108272
1440194806
15159440027
16634857536
172524253822
1810061284624
1940067909864
20159820748482
21637157976526
222542888042852
2310145529835268
2440507851460434
25161706752889040
26645859214596938
272579323889200758

[1,1,4,13,50,182,712,2711,10672,41470,164102,
 644580,2557808,10108272,40194806,159440027,
 634857536,2524253822,10061284624,40067909864,
 159820748482,637157976526,2542888042852,
 10145529835268,40507851460434,161706752889040,
 645859214596938,2579323889200758]