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A277556 as a simple table

na(n)
01
11
20
32
42
514
642
7244
81208
97930
1052710
11405850
123310702
1329742388
14285103536
152943395390
1632318674810
17377660270510
184668433604250
1960946384750028
20837286564780496
2112079835055678770
22182562305754119886
232884622329374990250
2447559525570125238782

[1,1,0,2,2,14,42,244,1208,7930,52710,405850,
 3310702,29742388,285103536,2943395390,32318674810,
 377660270510,4668433604250,60946384750028,
 837286564780496,12079835055678770,
 182562305754119886,2884622329374990250,
 47559525570125238782]