a(n) = ((prime(n)-1)!+2) mod prime(n)# (cf. A002110).

A245457

a(n) = ((prime(n)-1)!+2) mod prime(n)# (cf. A002110).

Terms

    a(0) =1a(1) =4a(2) =26a(3) =92a(4) =2102a(5) =23102a(6) =60062a(7) =510512a(8) =29099072a(9) =3792578792a(10) =84106011992

External references