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A178872 as a simple table

na(n)
00
11
23
312
449
5195
6780
73121
812483
949932
10199729
11798915
123195660
1312782641
1451130563
15204522252
16818089009
173272356035
1813089424140
1952357696561
20209430786243
21837723144972
223350892579889
2313403570319555
2453614281278220
25214457125112881

[0,1,3,12,49,195,780,3121,12483,49932,199729,
 798915,3195660,12782641,51130563,204522252,
 818089009,3272356035,13089424140,52357696561,
 209430786243,837723144972,3350892579889,
 13403570319555,53614281278220,214457125112881]