A146486 - OEIS

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A146486

Decimal expansion of Product_{q in A001358} (1-1/(q^2*(q-1))).

9, 6, 9, 9, 3, 2, 3, 2, 5, 0, 0, 1, 5, 2, 5, 3, 1, 6, 2, 1, 4, 9, 2, 0, 2, 0, 7, 7, 8, 9, 1, 2, 9, 5, 7, 5, 9, 6, 1, 1, 4, 5, 7, 9, 4, 7, 9, 6, 6, 9, 6, 0, 8, 8, 0, 0, 6

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

Semiprime analog of A065414.

LINKS

Table of n, a(n) for n=0..56.

R. J. Mathar, Hardy-Littlewood constants embedded into infinite products.., arxiv:0903.2514, variable A_2^(2), Table 3.

EXAMPLE

0.969932325001525316214920... = (1-1/48)*(1-1/180)*(1-1/648)*(1-1/900)*..

CROSSREFS

Sequence in context: A345288 A019790 A033186 * A137907 A070164 A063602

Adjacent sequences: A146483 A146484 A146485 * A146487 A146488 A146489

KEYWORD

nonn,cons,less

AUTHOR

R. J. Mathar, Feb 13 2009

STATUS

approved