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A286217 Product of the n-th sexy prime triple. 0
1729, 11339, 49321, 146969, 386389, 1089019, 1221191, 3864241, 5171489, 12640949, 18181979, 21243961, 43974269, 51881689, 178433279, 208506509, 230324329, 278421569, 393806449, 849244031, 932539661, 1341880019, 1416207439, 1672403471, 1829232539, 2111885999 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

Wikipedia, Sexy Prime

FORMULA

a(n) = s(n)*(s(n)+6)*(s(n)+12), where s = A046118.

a(n) = A046118(n) * A046119(n) * A046120(n).

EXAMPLE

The first sexy prime triple is (7, 13, 19) so a(1) = 7*13*19 = 1729.

MATHEMATICA

Select[Prime@ Range@ 500, PrimeQ[# + {6, 12, 18}] == {True, True, False} &] // # (#+6) (#+12) & (* Giovanni Resta, May 05 2017 *)

CROSSREFS

Cf. A023201, A046118, A046119, A046120.

Sequence in context: A245671 A154716 A154728 * A337316 A338998 A280428

Adjacent sequences: A286214 A286215 A286216 * A286218 A286219 A286220

KEYWORD

nonn,easy

AUTHOR

Connor Zapfel, May 04 2017

STATUS

approved

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Last modified December 6 21:00 EST 2022. Contains 358648 sequences. (Running on oeis4.)