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Search: id:A089539
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A089539 Semiprimes arising in A085747. +0
5
4, 4, 9, 25, 121, 721, 5041, 40321, 362885, 3628801, 39916803, 479001617, 6227020801, 87178291201, 1307674368007, 20922789888002, 355687428096003, 6402373705728023, 121645100408832001, 2432902008176640001 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = n! + A085747(n).

CROSSREFS

Cf. A085747, A089538, A089540, A089541.

Sequence in context: A117879 A069549 A118069 this_sequence A117416 A059811 A091016

Adjacent sequences: A089536 A089537 A089538 this_sequence A089540 A089541 A089542

KEYWORD

nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 09 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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