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A157065 as a simple table

na(n)
12
296
32562
447920
5692610
68174544
781659522
8708113304
95431848930
1037403270520
11233931828834
121341750437352
137114703302434
1435117045235720
15162298598439330
16705951252118284
172903050518427962
1811331495633292524
1942132555868774010
20149703679118108220

[2,96,2562,47920,692610,8174544,81659522,
 708113304,5431848930,37403270520,233931828834,
 1341750437352,7114703302434,35117045235720,
 162298598439330,705951252118284,2903050518427962,
 11331495633292524,42132555868774010,
 149703679118108220]