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A130506 a(1)=1; a(n) = prod(n^2 - p(n-1) + r, r=0..2^(n-2)-1) if n > 1, where p(i) is the i-th prime. 0
1, 2, 42, 24024, 43609104000, 1315041316842168115200000 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

The first four terms agree with a Riemann Hypothesis related sequence.

REFERENCES

Marcus du Sautoy, "The Music of the Primes", Harper Collins, 2003.

EXAMPLE

a(4) = 24024 because 24024 = (16 - 5 + 0)*(16 - 5 + 1)*(16 - 5 + 2)*(16 - 5 + 3).

CROSSREFS

Cf. A039622.

Sequence in context: A193272 A193273 A039622 * A052078 A069544 A085460

Adjacent sequences:  A130503 A130504 A130505 * A130507 A130508 A130509

KEYWORD

easy,nonn

AUTHOR

Ben de la Rosa & Johan Meyer (meyerjh.sci(AT)ufs.ac.za), Aug 08 2007

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.