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A141840 as a simple table

na(n)
116
264
3631
41561
54360
615466
763043
834406005
9565306024
1023001126626004
114562530234315632

[16,64,631,1561,4360,15466,63043,34406005,
 565306024,23001126626004,4562530234315632]