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

A067355

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

Terms

    a(0) =11a(1) =47a(2) =335a(3) =373a(4) =571a(5) =1242a(6) =1307a(7) =1663a(8) =3013a(9) =3225a(10) =3552a(11) =4074a(12) =4379a(13) =4459a(14) =4939a(15) =5353a(16) =5760a(17) =5915a(18) =6569a(19) =7099a(20) =7524a(21) =7752a(22) =8286a(23) =8934a(24) =9531a(25) =10069a(26) =10405a(27) =10724a(28) =10878a(29) =11850

External references