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A337060 as a simple table

na(n)
01
11
22
38
446
5324
62708
726424
8295272
93714600
1051929472
11798610416
1213399081584
13243556758912
144767863027328
15100004300847744
162237419620187776
1753187370914349440
181338737435337261312
1935568441673932566016
20994744655047298951424
2129211127285363209561600

[1,1,2,8,46,324,2708,26424,295272,3714600,
 51929472,798610416,13399081584,243556758912,
 4767863027328,100004300847744,2237419620187776,
 53187370914349440,1338737435337261312,
 35568441673932566016,994744655047298951424,
 29211127285363209561600]