Numbers k such that prime(k+3)-(k+3)*tau(k+3) = prime(k)-k*tau(k) where tau(k) = A000005(k) is the number of divisors of k.

A067356

Numbers k such that prime(k+3)-(k+3)*tau(k+3) = prime(k)-k*tau(k) where tau(k) = A000005(k) is the number of divisors of k.

Terms

    a(0) =172a(1) =206a(2) =435a(3) =542a(4) =551a(5) =575a(6) =611a(7) =626a(8) =718a(9) =759a(10) =903a(11) =955a(12) =1102a(13) =1238a(14) =1495a(15) =1711a(16) =2009a(17) =2379a(18) =2385a(19) =2482a(20) =2572a(21) =2815a(22) =2874a(23) =3018a(24) =3103a(25) =3222a(26) =3225a(27) =3802a(28) =3899a(29) =4055

External references