Semiprime(n)*semiprime(n+3) - semiprime(n+1)*semiprime(n+2), where semiprime(n) is the n-th semiprime.

A118780

Semiprime(n)*semiprime(n+3) - semiprime(n+1)*semiprime(n+2), where semiprime(n) is the n-th semiprime.

Terms

    a(0) =-14a(1) =-6a(2) =-5a(3) =0a(4) =-7a(5) =-87a(6) =-4a(7) =76a(8) =-8a(9) =-212a(10) =64a(11) =-4a(12) =128a(13) =68a(14) =-265a(15) =31a(16) =-12a(17) =-177a(18) =104a(19) =109a(20) =-28a(21) =103a(22) =-101a(23) =-40a(24) =-24a(25) =-348a(26) =-176a(27) =253a(28) =81a(29) =-285

External references