A104935 Primes squared of the form k + prime(k).

49, 529, 1681, 10609, 26569, 27889, 72361, 100489, 109561, 196249, 214369, 727609, 863041, 877969, 1142761, 1371241, 1471369, 1692601, 1957201, 2199289, 2601769, 2745649, 3500641, 3613801, 3798601, 3972049, 4214809, 5812921, 6405961, 7134241, 7349521

Offset: 1

Author

Zak Seidov, Apr 25 2005

Keywords

• nonn

Comments

Primes squared in A014688.

Links

• Tyler Busby, Table of n, a(n) for n = 1..10000 (terms 1..106 from Zak Seidov)

Crossrefs

Cf. A014688.

Subsequence of A104992.

Programs

PARI

lista(nn) = {vec = vector(nn, i, i + prime(i)); pp = select(i->(issquare(i) && isprime(sqrtint(i))), vec); print(pp);} \\ Michel Marcus, Oct 09 2013

Extensions

a(12) - a(16) from Michel Marcus, Oct 09 2013

a(17) onward from Zak Seidov, Mar 13 2014