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A129205
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From Wendt's determinant compute (A048954(2*n)/(1-4^n))^(1/2).
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1
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1, 5, 0, 2295, 453871, 0, 545539395584, 4883188189089105, 0, 14214363393075742724609375, 5968603205606800870499639536231, 0, 41302584753289717847206700750464023881130441
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| P. Ribenboim, 13 Lectures on Fermat's last theorem, Springer-Verlag, NY, 1979, page 62. MR0551363 (81f:10023)
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FORMULA
| a(n)=0 if and only if n is divisible by 3.
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PROG
| (PARI) {a(n)= if(n<1, 0, n*=2; sqrtint( matdet( matrix( n, n, i, j, binomial( n, (j-i)%n )))/ (1-2^n)))}
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CROSSREFS
| Sequence in context: A027641 A164555 A176327 * A098173 A180977 A058177
Adjacent sequences: A129202 A129203 A129204 * A129206 A129207 A129208
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KEYWORD
| nonn
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AUTHOR
| Michael Somos, Apr 03 2007
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