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A247676 Odd composite numbers congruent to 2 modulo 9. 8
65, 119, 155, 209, 245, 299, 335, 371, 407, 425, 497, 515, 533, 551, 605, 623, 695, 713, 731, 749, 767, 785, 803, 875, 893, 965, 1001, 1037, 1055, 1073, 1127, 1145, 1199, 1235, 1253, 1271, 1325, 1343, 1379, 1397, 1415, 1469, 1505, 1541, 1577, 1595, 1631, 1649 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A017185 (9n+2).

Composites == 11 mod 18. - Robert Israel, Sep 24 2014

LINKS

Odimar Fabeny, Table of n, a(n) for n = 1..10000

MAPLE

remove(isprime, [seq(18*k+11, k=1..1000)]); # Robert Israel, Sep 24 2014

MATHEMATICA

Select[18Range[100] + 11, Not[PrimeQ[#]] &] (* Alonso del Arte, Sep 25 2014 *)

PROG

(PARI) lista(nn) = {forcomposite(n=1, nn, if ((n % 2) && ((n % 9) == 2), print1(n, ", ")); ); } \\ Michel Marcus, Sep 22 2014

CROSSREFS

Cf. A017185, A247678, A247679, A247681, A247682, A247683.

Sequence in context: A075893 A064901 A039482 * A118159 A044188 A044569

Adjacent sequences: A247673 A247674 A247675 * A247677 A247678 A247679

KEYWORD

nonn,easy

AUTHOR

Odimar Fabeny, Sep 22 2014

STATUS

approved

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Last modified November 28 05:31 EST 2022. Contains 358407 sequences. (Running on oeis4.)