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Search: id:A164515
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A164515 Positive numbers not of the form n^2+2. +0
1
1, 4, 5, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80 (list; graph; listen)
OFFSET

1,2

COMMENT

Complement of A059100, and essentially also of A010000.

FORMULA

A000027 \ A059100.

a(n) = n + 1 + floor(sqrt(n-1) + 1/2), for n >= 2.

CROSSREFS

Sequence in context: A022294 A087202 A010666 this_sequence A047494 A080712 A005048

Adjacent sequences: A164512 A164513 A164514 this_sequence A164516 A164517 A164518

KEYWORD

nonn,easy

AUTHOR

Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Aug 14 2009

EXTENSIONS

Redefined for simplicity by removing 2, R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 31 2009

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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