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A159602 as a simple table

na(n)
01
11
22
36
426
5152
61202
712840
8184060
93552960
1092338448
113237738008
12153574021372
139872941474544
14862850471831896
15102720981260693424
1616701084112350547436
173715705202756433837504
181133547354784950481434016

[1,1,2,6,26,152,1202,12840,184060,3552960,
 92338448,3237738008,153574021372,9872941474544,
 862850471831896,102720981260693424,
 16701084112350547436,3715705202756433837504,
 1133547354784950481434016]