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A007559 as a simple table

na(n)
01
11
24
328
4280
53640
658240
71106560
824344320
9608608000
1017041024000
11528271744000
1217961239296000
13664565853952000
1426582634158080000
151143053268797440000
1652580450364682240000
172576442067869429760000
18133974987529210347520000
197368624314106569113600000

[1,1,4,28,280,3640,58240,1106560,24344320,
 608608000,17041024000,528271744000,17961239296000,
 664565853952000,26582634158080000,
 1143053268797440000,52580450364682240000,
 2576442067869429760000,133974987529210347520000,
 7368624314106569113600000]