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A230897 as a simple table

na(n)
10
270
3810
423884
5579218
615392914
7400106488
810548244824
9276988116562
107290773137370
11191799500354366
125047559049038998
13132829499753935500
143495691177600683788
1591996653229110438308
162421116272663216851440

[0,70,810,23884,579218,15392914,400106488,
 10548244824,276988116562,7290773137370,
 191799500354366,5047559049038998,
 132829499753935500,3495691177600683788,
 91996653229110438308,2421116272663216851440]