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A014608 as a simple table

na(n)
01
11
270
334650
463063000
5305540235000
63246670537110000
766475579247327250000
82390461829733887910000000
9140810154080474667338550000000
1012868639981414579848070084500000000
111746930746117010628955362040959500000000

[1,1,70,34650,63063000,305540235000,
 3246670537110000,66475579247327250000,
 2390461829733887910000000,
 140810154080474667338550000000,
 12868639981414579848070084500000000,
 1746930746117010628955362040959500000000]