A233448 Compositorial(n) mod n!, that is, A036691(n) mod A000142(n).

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25401600, 174182400, 1437004800, 46942156800, 301771008000, 0, 188305108992000, 5272543051776000, 30128817438720000, 964122158039040000, 24517325190758400000, 118315866081853440000, 16505063318418554880000, 283958078596448256000000

Offset: 1

Author

Alex Ratushnyak, Dec 10 2013

Keywords

• nonn

Comments

The sequence of numbers k such that a(k) > a(k+1) begins: 15, 81, 135, 337, 57517, ...

Crossrefs

Cf. A000142, A036691.

Programs

PARI

a(n)=my(c,p,N);N=n;c=4;p=1;while(n>0,if(!isprime(c),p=p*c;n=n-1);c=c+1);p%N! \\ Ralf Stephan, Dec 21 2013