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A143501 as a simple table

na(n)
01
11
21
34
416
592
6616
74729
840776
9388057
104028230
1145207583
12544680014
137004865885
1495694153485
151382946630490
1621067128029388
17337224872043659
185656357906530796
1999168643108816180
201813250965008114981

[1,1,1,4,16,92,616,4729,40776,388057,4028230,
 45207583,544680014,7004865885,95694153485,
 1382946630490,21067128029388,337224872043659,
 5656357906530796,99168643108816180,
 1813250965008114981]