A128654 Primes occurring in A084704 exactly thrice.

263, 821, 953, 1049, 1597, 2143, 2273, 2677, 2683, 2699, 2749, 3251, 3389, 3709, 3739, 3761, 3929, 4013, 4243, 4409, 4519, 4603, 4621, 4639, 4657, 4943, 5009, 5387, 5449, 5483, 5783, 6173, 6311, 6373, 6703, 6737, 6869, 6983, 7517, 7603, 7717, 7993

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Example

263 occurs as the 42nd, 51st and 53rd terms: (prime(#)+263)/2/(AT){43,52,54}= {227,251,257} primes.

Crossrefs

Cf. A084704, A128653, A128655.

Sequence in context: A142754 A245877 A142379 * A236245 A343192 A023314

Adjacent sequences: A128651 A128652 A128653 * A128655 A128656 A128657

Keyword

nonn

Author

Zak Seidov, Mar 18 2007

Status

approved