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A171511 a(n) = numbers m such that are not the sum of k-th composite number and k for any k >= 1. 1
1, 2, 3, 4, 6, 7, 9, 10, 12, 14, 16, 17, 19, 20, 22, 24, 26, 27, 29, 30, 32, 34, 36, 37, 39, 41, 43, 45, 47, 48, 50, 51, 53, 55, 57, 59, 61, 62, 64, 66, 68, 69, 71, 72, 74, 76, 78, 79, 81, 83 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Complement of set {A(composite number(n)+n)} = {A161537(n)} = {A(A002808(n)+A000027(n))}.

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Sequence in context: A211264 A189725 A248635 * A225819 A205805 A246372

Adjacent sequences:  A171508 A171509 A171510 * A171512 A171513 A171514

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Dec 10 2009

STATUS

approved

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Last modified January 27 08:31 EST 2020. Contains 331293 sequences. (Running on oeis4.)