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A155154 Number of right triangles with nonnegative integer coordinates less than or equal to N and one corner at the origin. 0
0, 3, 14, 33, 62, 101, 148, 207, 276, 353, 448, 547, 662, 785, 920, 1067, 1230, 1397, 1586, 1773, 1986, 2205, 2436, 2671, 2940, 3207, 3494, 3787, 4096, 4399, 4764, 5095, 5458, 5825, 6208, 6603, 7050, 7453, 7880, 8331, 8826, 9277, 9800, 10279, 10808 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..44.

Project Euler, Problem 91

CROSSREFS

Sequence in context: A197946 A130697 A033991 * A081269 A140064 A064226

Adjacent sequences:  A155151 A155152 A155153 * A155155 A155156 A155157

KEYWORD

nonn

AUTHOR

Emlyn Corrin (emlyn(AT)corrin.name), Jan 21 2009

STATUS

approved

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Last modified November 13 01:32 EST 2018. Contains 317118 sequences. (Running on oeis4.)