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A262344 Centered 11-gonal (or hendecagonal) primes. 1
67, 397, 727, 859, 1321, 2311, 3037, 3301, 4159, 8581, 10891, 12409, 19471, 28909, 51217, 63559, 64747, 78541, 79861, 95107, 100981, 108571, 119659, 134707, 139921, 156157, 177211, 195427, 203809, 221101, 257797, 264991, 284659, 287167, 294757, 307627, 315481 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes of the form (11*k^2 - 11*k + 2)/2.

LINKS

Table of n, a(n) for n=1..37.

OEIS Wiki, Figurate numbers

Eric Weisstein's World of Mathematics, Centered Polygonal Number

Eric Weisstein's World of Mathematics, Prime Number

PROG

(PARI) for(n=1, 1e3, if(isprime(k=(11*n^2-11*n+2)/2), print1(k, ", "))) \\ Altug Alkan, Nov 26 2015

CROSSREFS

Cf. A069125, A000040.

Sequence in context: A026911 A142371 A142609 * A323577 A142735 A219736

Adjacent sequences:  A262341 A262342 A262343 * A262345 A262346 A262347

KEYWORD

nonn

AUTHOR

Ilya Gutkovskiy, Nov 26 2015

STATUS

approved

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Last modified September 15 16:33 EDT 2019. Contains 327078 sequences. (Running on oeis4.)