A103979 - OEIS

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A103979

Reduced numerators of x^(2n) in the series expansion of erf(x)^2 Pi/4 about 0.

0, 1, -2, 14, -4, 166, -292, 2092, -136, 28102, -52412, 131468, -2264, 5692636, -10892936, 83688344, -20155888, 1246068806, -541124, 2675231852, -19548472, 40491935468, -552572485496, 4314388905704, -13091776816, 65972020761116

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

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..25.

Eric Weisstein's World of Mathematics, Erf

EXAMPLE

x^2 - (2*x^4)/3 + (14*x^6)/45 - (4*x^8)/35 + (166*x^10)/4725 + ...

CROSSREFS

Cf. A103980.

Sequence in context: A281944 A306724 A316909 * A183420 A084677 A344115

Adjacent sequences: A103976 A103977 A103978 * A103980 A103981 A103982

KEYWORD

sign,frac

AUTHOR

Eric W. Weisstein, Feb 23 2005

STATUS

approved