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A167748 as a simple table

na(n)
11
21
32
49216
5250822656000
61721860898320750629665025350129266874199532634112000000000000
7127571798940158944523056860801259448502131218787316228449430227816121623349001793754442941084615568218917882938952698416464702214493962240000000000000000000000000000000

[1,1,2,9216,250822656000,
 17218608983207506296650253501292668741995326341120\
 00000000000,
 12757179894015894452305686080125944850213121878731\
 62284494302278161216233490017937544429410846155682\
 18917882938952698416464702214493962240000000000000\
 000000000000000000]