Smallest odd nonprime such that every subset of a(1), ..., a(n) adds to a nonprime.

A128687

Smallest odd nonprime such that every subset of a(1), ..., a(n) adds to a nonprime.

Terms

    a(0) =1a(1) =9a(2) =15a(3) =39a(4) =105a(5) =731a(6) =2805a(7) =59535a(8) =2658795a(9) =78060135a(10) =67554224745

External references