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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
OFFSET
1,3
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: A290580 A038122 A359862 * A240244 A036968 A226158
KEYWORD
sign
AUTHOR
STATUS
approved