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A318797 as a simple table

na(n)
00
11
21
32
44
58
618
743
8102
9250
10623
111579
124042
1310470
1427350
1572034
16190956
17509259
181365271
193677522
209947145
2127007988
2273582758
23201103314
24551190098
251514683667
264172470962
2711519509386
2831869341642
2988337853393
30245301368188
31682307613945

[0,1,1,2,4,8,18,43,102,250,623,1579,4042,10470,
 27350,72034,190956,509259,1365271,3677522,9947145,
 27007988,73582758,201103314,551190098,1514683667,
 4172470962,11519509386,31869341642,88337853393,
 245301368188,682307613945]