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A145376 If T(n)>=n is the nearest triangular number to n and p_n is the n-th prime, then a(n) is the least prime such that T(a(n)*p_n)-a(n)p_n is a triangular number +0
1
3, 2, 2, 2, 2, 3, 5, 5, 7, 11, 11, 11, 13, 17, 17, 19, 23, 23, 29, 29, 29, 29, 31, 37, 37, 41 (list; graph; listen)
OFFSET

1,1

COMMENT

Conjecture. For n>=2 the sequence is nondecreasing.

CROSSREFS

A000217 A145043 A145016 A145281 A145300

Sequence in context: A057934 A122396 A037199 this_sequence A084402 A127599 A085034

Adjacent sequences: A145373 A145374 A145375 this_sequence A145377 A145378 A145379

KEYWORD

nonn

AUTHOR

Vladimir Shevelev (shevelev(AT)bgu.ac.il), Oct 09 2008

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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