3328159domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(0)=a(1)=3; thereafter a(n) = a(n-1) + a(n-2) + 1.at n=29A022403a(0)=3, a(1)=7; thereafter a(n) = a(n-1) + a(n-2) + 1.at n=28A022406a(0)=1, a(1)=3, a(2)=7; thereafter a(n) = a(n-1) + a(n-2) + 1.at n=29A355288Prime numbersat n=238781