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A153062
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a(0)=1, a(n)=a(n-1)^2-n^2.
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3
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1, 0, -4, 7, 33, 1064, 1132060, 1281559843551, 1642395632602463596289537, 2697463413991646582332856337058890220473935674288, 7276308869823469318922107258255539214217660183827400648026742290333726278585952350082821224306844
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) ~ c^(2^n), where c = 1.24334516566159378905145559484975509773481252881469517052010008004602693351819... . - Vaclav Kotesovec, Dec 18 2014
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MATHEMATICA
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a=1; lst={}; Do[a=a^2-n^2; AppendTo[lst, a], {n, 0, 12}]; lst
RecurrenceTable[{a[0]==1, a[n]==a[n-1]^2-n^2}, a, {n, 0, 10}] (* Vaclav Kotesovec, Dec 18 2014 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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