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A203124
Smallest integer m such that each sum of m plus the square of an even number up to 2n is an odd composite numbers.
0
5, 5, 29, 29, 29, 41, 41, 41, 41, 41, 41, 341, 341, 341, 341, 341, 341, 479, 479, 479, 749, 749, 749, 749, 749, 749, 749, 749, 749, 3461, 3461, 3461, 3561, 3561, 3701, 3701, 3701, 3701, 3701, 3701, 3701, 3701, 3701, 3701, 6041, 6041, 6041, 6041, 6041, 6041
OFFSET
1,1
EXAMPLE
a(1)=5 because 2^2+{1,3} are prime and 2^2+5 is composite;
a(2)=5 because the least m such that all {2^2,4^2}+m are all odd composite is 5;
a(3)=29 because the least m such that all {2^2,4^2,6^2}+m are all odd composite is 29.
CROSSREFS
Sequence in context: A219351 A130220 A081847 * A305180 A284140 A284182
KEYWORD
nonn
AUTHOR
Zak Seidov, Dec 29 2011
STATUS
approved