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A326649 as a simple table

na(n)
00
11
24
319
481
5413
62439
714655
886844
9573196
104224230
1132280154
12249433713
131925416359
1415732592327
15139542345546
161304524118159
1712445507282579
18119198874300879
191137647406084952
2011183828252431175
21116368970786569604
221278400213028604214

[0,1,4,19,81,413,2439,14655,86844,573196,4224230,
 32280154,249433713,1925416359,15732592327,
 139542345546,1304524118159,12445507282579,
 119198874300879,1137647406084952,
 11183828252431175,116368970786569604,
 1278400213028604214]