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A161361
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Convolution square root of A000521
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3
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1, 372, 29250, -134120, 54261375, -6139293372, 854279148734, -128813964933000, 20657907916144515, -3469030105750871000, 603760629237519966018, -108124880417607682194048, 19820541224206810447813500
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Triangle A161362 = the corresponding convolution triangle with row sums = A000521.
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FORMULA
| Given A000521: (j = 1/q + 744 + 196884q + 21493760q^2 + 864299970q^3 + ...); multiply by q and take the convolution square root.
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EXAMPLE
| a(2) = 29250 = 1/2 * (A000521(2) - 372^2) = 1/2 * (196884 - 138384) = 29250.
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CROSSREFS
| Cf. A000521, A161362
Sequence in context: A203924 A004021 A200885 * A203439 A202912 A139659
Adjacent sequences: A161358 A161359 A161360 * A161362 A161363 A161364
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KEYWORD
| sign
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 07 2009
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 15 2009
Keyword:sign introduced by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 07 2009
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