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A130887 A127093 * A007318 * [1/1, 1/2, 1/3,...]. 1
1, 4, 8, 19, 32, 74, 128, 274, 519, 1058 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

A127093 * A007318^(-1) * [1/1, 1/2, 1/3,...] = A048272: (1, 0, 2, -1, 2, 0, 2, -2,...).

FORMULA

A127093 * A007318 * (the harmonic series); where A007318 * [1/1, 1/2, 1/3,...] = [1/1, 3/2, 7/3, 15/4,...].

EXAMPLE

a(4) = 19 = (1/1, 3/2, 7/3, 15/4) dot (1, 2, 0, 4) = (1 + 3 + 0 + 15); where (1, 2, 0, 4) = row 4 of A127093.

CROSSREFS

Cf. A127093, A001047, A048272.

Sequence in context: A075797 A104137 A162362 * A049933 A163318 A129362

Adjacent sequences:  A130884 A130885 A130886 * A130888 A130889 A130890

KEYWORD

nonn

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 07 2007

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Last modified February 15 21:27 EST 2012. Contains 205859 sequences.