Primorial - 1 prime indices: integers m such that the m-th primorial minus 1 is prime.

A057704

Primorial - 1 prime indices: integers m such that the m-th primorial minus 1 is prime.

Terms

    a(0) =2a(1) =3a(2) =5a(3) =6a(4) =13a(5) =24a(6) =66a(7) =68a(8) =167a(9) =287a(10) =310a(11) =352a(12) =564a(13) =590a(14) =620a(15) =849a(16) =1552a(17) =1849a(18) =67132a(19) =85586a(20) =234725a(21) =334023a(22) =435582a(23) =446895

External references