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A326780 as a simple table

na(n)
01
11
22
36
424
5144
6864
76048
848384
9475776
104902912
1153932032
12647184384
138892398592
14126430875648
151906924529664
1630510792474624
17539606261956608
189890452422918144
19188459240926150656
203773077461736095744
2181667528704634650624
221819516013302975561728

[1,1,2,6,24,144,864,6048,48384,475776,4902912,
 53932032,647184384,8892398592,126430875648,
 1906924529664,30510792474624,539606261956608,
 9890452422918144,188459240926150656,
 3773077461736095744,81667528704634650624,
 1819516013302975561728]