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A058231 A Somos-8 sequence. +0
1
0, 0, 1, 36, -16, 5041728, -19631351040, -62024429150208, -2805793044443561984, -1213280369793911777918976, 6452140445339288271043778576384, -30464666973776461531165746768673505280, 2509543205099684468628113981366827179048960, -83207632517142132982462515955707028888811707910062080 (list; graph; listen)
OFFSET

0,4

REFERENCES

D. G. Cantor, On the analogue of the division polynomials for hyperelliptic curves, J. Reine Angew. Math. (Crelle's J.) 447 (1994), pp. 91-145.

D. G. Cantor (dgc(AT)ccrwest.org), email, Nov. 30, 2000.

FORMULA

For n >= 4, 0 = u[4] * a[n+4] * a[n-4] + u[3] * a[n+3] * a[n-3 + u[21 * a[n+2] * a[n-2] + u[1] * a[n+1] * a[n-1] + u[0] * a[n]^2, where u[0], ..., u[4] are 314101616640, 25442230947840, 235226865664, -181502208, -16.

CROSSREFS

Sequence in context: A073405 A056770 A061038 this_sequence A008894 A033973 A033356

Adjacent sequences: A058228 A058229 A058230 this_sequence A058232 A058233 A058234

KEYWORD

sign

AUTHOR

njas, Dec 02 2000

page 1

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.


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