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A056221
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Image of primes (A000040) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.
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9
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-1, 4, -6, 30, -18, 42, -30, -22, 128, -112, 98, 90, -78, -70, 36, 248, -232, 158, 150, -280, 182, -142, -130, 420, 210, -198, 222, -210, -1074, 1326, -238, 560, -1092, 1212, -592, 36, 350, -310, 36, 728, -1428, 1548, -378, 402, -1966, 144, 1832, 462, -450, -442
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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a(n) = determinant of matrix
| prime(n+1) prime(n)|
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MAPLE
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ithprime(n+1)^2-ithprime(n)*ithprime(n+2) ;
end proc:
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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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