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A136464 as a simple table

na(n)
01
11
25
3140
418278
510187344
623427955408
7219523230207424
88342151047514210800
91283165334094645437430016
10797992395974041544979314144000
112004526711813925600335978883389492224
1220319947544434703948516669537695298775460352

[1,1,5,140,18278,10187344,23427955408,
 219523230207424,8342151047514210800,
 1283165334094645437430016,
 797992395974041544979314144000,
 2004526711813925600335978883389492224,
 20319947544434703948516669537695298775460352]