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A053490 as a simple table

na(n)
01
10
26
39
4132
5630
66642
755440
8608976
96790392
1085413960
111145077560
1216600386888
13256806229680
144233767671728
1574015194485960
161368023697469440
1726649263762049600
18545697922821501888
1911717708270380421760
20263276186128105633920

[1,0,6,9,132,630,6642,55440,608976,6790392,
 85413960,1145077560,16600386888,256806229680,
 4233767671728,74015194485960,1368023697469440,
 26649263762049600,545697922821501888,
 11717708270380421760,263276186128105633920]