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A143779 Numbers of the form k=k^2-n^2. 0
0, -1, -3, 0, -16, 231, 53325, 2843555576, 8085808313800691712, 65380296087528385371720710929665490863, 4274583116492879495671558465604382082843695840997226026463670361542736484669 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..11.

FORMULA

n=0, 1, 2,3, 4, 5, 6,... k=0,-1.-3,0,-16,231,53325,... k=k^2-n^2

MATHEMATICA

lst={}; k=0; Do[k=k^2-n^2; AppendTo[lst, k], {n, 0, 12}]; lst

CROSSREFS

Sequence in context: A013494 A290580 A038122 * A240244 A036968 A226158

Adjacent sequences:  A143776 A143777 A143778 * A143780 A143781 A143782

KEYWORD

sign

AUTHOR

Vladimir Joseph Stephan Orlovsky, Aug 31 2008

STATUS

approved

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Last modified June 16 10:03 EDT 2019. Contains 324152 sequences. (Running on oeis4.)