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A239967 as a simple table

na(n)
11
21
32
42
53
64
78
826
9196
105064
11992336
125025184408
134986671393704544
1425058943335463698842360448
15124960715887419957580506993886784668778624
163131383498581835095655557937198087383978439131276209799741457913600

[1,1,2,2,3,4,8,26,196,5064,992336,5025184408,
 4986671393704544,25058943335463698842360448,
 124960715887419957580506993886784668778624,
 31313834985818350956555579371980873839784391312762\
 09799741457913600]