A139540 - OEIS

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A139540

Indices of primes of the form 12k+1 which have representation x^2+32xy+y^2.

10, 15, 18, 19, 26, 31, 32, 38, 40, 48, 51, 52, 55, 65, 66, 67, 74, 77, 79, 84, 100, 103, 104, 107, 109, 117, 131, 132, 135, 138, 143, 154, 155, 161, 169, 170, 182, 183, 187, 198, 199, 200, 208, 212, 213, 222, 225, 229, 231, 232, 235, 247, 248, 249, 255, 258

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Cf. A068228, A139512, A139539.

Sequence in context: A188579 A269985 A282648 * A343550 A285176 A135363

Adjacent sequences: A139537 A139538 A139539 * A139541 A139542 A139543

KEYWORD

nonn

AUTHOR

Artur Jasinski, Apr 25 2008

STATUS

approved