a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Bell(i+j).

A278842

a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Bell(i+j).

Terms

    a(0) =1a(1) =2a(2) =55a(3) =27748a(4) =344594008

External references