Primes in the triangle defined by T(0,c)=1, T(1,c)=c, T(r,1)=1 and T(r,c) = T(r,c-1) + c*(r-1)!.

A105071

Primes in the triangle defined by T(0,c)=1, T(1,c)=c, T(r,1)=1 and T(r,c) = T(r,c-1) + c*(r-1)!.

Terms

    a(0) =3a(1) =5a(2) =11a(3) =13a(4) =31a(5) =241a(6) =337a(7) =601a(8) =6481a(9) =14401a(10) =19441a(11) =45361a(12) =100801a(13) =176401a(14) =1088641a(15) =18144001a(16) =32659201a(17) =50803201a(18) =72576001a(19) =199584001a(20) =958003201a(21) =1077753601a(22) =2155507201a(23) =2395008001a(24) =2594592001a(25) =56043187201a(26) =124540416001a(27) =647610163201

External references