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A177881 as a simple table

na(n)
00
10
21
34
412
536
6109
7328
8984
92952
108857
1126572
1279716
13239148
14717445
152152336
166457008
1719371024
1858113073
19174339220
20523017660
211569052980
224707158941
2314121476824
2442364430472
25127093291416

[0,0,1,4,12,36,109,328,984,2952,8857,26572,79716,
 239148,717445,2152336,6457008,19371024,58113073,
 174339220,523017660,1569052980,4707158941,
 14121476824,42364430472,127093291416]