login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A247682 Odd composite numbers congruent to 5 modulo 9. 8
77, 95, 185, 203, 221, 275, 329, 365, 437, 455, 473, 527, 545, 581, 635, 671, 689, 707, 725, 779, 815, 833, 851, 869, 905, 923, 959, 995, 1067, 1085, 1121, 1139, 1157, 1175, 1211, 1247, 1265, 1337, 1355, 1391, 1445, 1463, 1517, 1535, 1589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A017221 (9n + 5).

LINKS

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

MATHEMATICA

Select[18Range[100] + 5, Not[PrimeQ[#]] &] (* Alonso del Arte, Sep 25 2014 *)

Select[Range[5, 2000, 18], CompositeQ] (* Harvey P. Dale, Feb 21 2016 *)

PROG

(PARI) lista(nn) = {forcomposite(n=1, nn, if ((n % 2) && ((n % 9) == 5), print1(n, ", ")); ); } \\ Michel Marcus, Sep 22 2014

CROSSREFS

Cf. A017221, A247676, A247678, A247679, A247681, A247683.

Sequence in context: A061671 A269809 A064902 * A127335 A193570 A154534

Adjacent sequences:  A247679 A247680 A247681 * A247683 A247684 A247685

KEYWORD

nonn,easy

AUTHOR

Odimar Fabeny, Sep 22 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 15 07:42 EDT 2019. Contains 328026 sequences. (Running on oeis4.)