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A070216 Squares of hypotenuses of right triangles having integer side lengths. +0
4
2, 5, 8, 10, 13, 18, 17, 20, 25, 32, 26, 29, 34, 41, 50, 37, 40, 45, 52, 61, 72, 50, 53, 58, 65, 74, 85, 98, 65, 68, 73, 80, 89, 100, 113, 128, 82, 85, 90, 97, 106, 117, 130, 145, 162, 101, 104, 109, 116, 125, 136, 149, 164, 181, 200, 122, 125, 130, 137, 146, 157 (list; table; graph; listen)
OFFSET

1,1

FORMULA

a(n, k)=n^2+k^2, 1<=k<=n

EXAMPLE

a(3,2)=13 because 3^2+2^2=13

CROSSREFS

Permutation of sequence A000404.

Sequence in context: A140328 A000415 A096691 this_sequence A100829 A030713 A157481

Adjacent sequences: A070213 A070214 A070215 this_sequence A070217 A070218 A070219

KEYWORD

easy,nonn,tabl

AUTHOR

Charles Northup (cnorthup(AT)esc6.net), May 07 2002

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Sep 25 2002

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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