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A007999 as a simple table

na(n)
01
11
21
31
42
53
68
719
864
9213
10880
113717
1218288
1392935
14531440
153147495
1620525168
17138638825
181015694832
197700244745
2062623847536
21526317901451
224705365925872
2343407723925499
24423149546210416
254250149857500861
2644868038386273776
27487341646372204813

[1,1,1,1,2,3,8,19,64,213,880,3717,18288,92935,
 531440,3147495,20525168,138638825,1015694832,
 7700244745,62623847536,526317901451,4705365925872,
 43407723925499,423149546210416,4250149857500861,
 44868038386273776,487341646372204813]