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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A258016 Unlucky numbers removed at the stage three of Lucky sieve. 3
19, 39, 61, 81, 103, 123, 145, 165, 187, 207, 229, 249, 271, 291, 313, 333, 355, 375, 397, 417, 439, 459, 481, 501, 523, 543, 565, 585, 607, 627, 649, 669, 691, 711, 733, 753, 775, 795, 817, 837, 859, 879, 901, 921, 943, 963, 985, 1005, 1027, 1047, 1069, 1089, 1111, 1131, 1153, 1173, 1195, 1215, 1237, 1257, 1279, 1299, 1321, 1341, 1363, 1383, 1405 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A047241(7*n).

a(n) = A260436(A255413(1+n)).

PROG

(Scheme, two alternatives)

(define (A258016 n) (A047241 (* n 7)))

(define (A258016 n) (A255543bi 3 n)) ;; Code for A255543bi given in A255543.

CROSSREFS

Row 3 of A255543. Every seventh term of A047241.

Cf. also A258011.

Sequence in context: A042629 A041708 A079044 * A217731 A195048 A299964

Adjacent sequences:  A258013 A258014 A258015 * A258017 A258018 A258019

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jul 27 2015

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 July 20 01:38 EDT 2019. Contains 325168 sequences. (Running on oeis4.)