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A149493 as a simple table

na(n)
01
11
24
314
460
5251
61120
75034
823167
9107491
10504444
112382474
1211326009
1354091015
14259422990
151248388483
166025296992
1729153344429
18141368541183
19686821433084
203342472006964
2116290717857322
2279504766682773
23388478084327045
241900247753858534
259304229885789657
2645597320486134219
27223642198438153404

[1,1,4,14,60,251,1120,5034,23167,107491,504444,
 2382474,11326009,54091015,259422990,1248388483,
 6025296992,29153344429,141368541183,686821433084,
 3342472006964,16290717857322,79504766682773,
 388478084327045,1900247753858534,9304229885789657,
 45597320486134219,223642198438153404]