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A161784
Product of primes on successive square intervals.
0
6, 35, 143, 7429, 899, 3065857, 190747, 27433619, 716539, 13710311357, 316818391, 96153908803, 206618110301, 1844618759, 175107974924611, 108538288030848139, 2775683761181, 1711914026665907, 3068689788020071, 2370246348458581727, 4340108409515894501, 8324078717718009703
OFFSET
1,1
FORMULA
a(n) = Product_{p in A000040, n^2<p<(n+1)^2} p. [R. J. Mathar, May 31 2010]
EXAMPLE
The first square interval is (1,4). The primes on this interval are 2,3, whose product is 6, the first term in the sequence.
PROG
(PARI) a(n) = vecprod(setminus(primes(primepi((n+1)^2)), primes(primepi(n^2)))); \\ Michel Marcus, Aug 16 2022
CROSSREFS
Cf. A014085 (number of primes in these intervals).
Sequence in context: A213504 A089581 A132657 * A027985 A078799 A203288
KEYWORD
easy,nonn
AUTHOR
Daniel Tisdale, Jun 19 2009
EXTENSIONS
More terms from R. J. Mathar, May 31 2010
More terms from Michel Marcus, Aug 16 2022
STATUS
approved