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A159595 as a simple table

na(n)
01
11
24
313
456
5286
62008
719749
8280842
95762129
10168873970
117023348917
12412682000624
1334188301513404
143992802803844526
15656649238572375132
16152278229304524217542
1749749953321847000835094

[1,1,4,13,56,286,2008,19749,280842,5762129,
 168873970,7023348917,412682000624,34188301513404,
 3992802803844526,656649238572375132,
 152278229304524217542,49749953321847000835094]