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A071738 as a simple table

na(n)
01
11
22
36
419
562
6207
7704
82431
98502
1030056
11107236
12385662
131396652
145088865
1518642420
1668624295
17253706790
18941630580
193507232740
2013105289370
2149114150020
22184560753390
23695267483664
242625197720454
259933364416572

[1,1,2,6,19,62,207,704,2431,8502,30056,107236,
 385662,1396652,5088865,18642420,68624295,
 253706790,941630580,3507232740,13105289370,
 49114150020,184560753390,695267483664,
 2625197720454,9933364416572]