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A129195 a(n)=denominator(n!/4^n). 0
1, 4, 8, 32, 32, 128, 256, 1024, 512, 2048, 4096, 16384, 16384, 65536, 131072, 524288, 131072, 524288, 1048576, 4194304, 4194304, 16777216, 33554432, 134217728, 67108864, 268435456, 536870912, 2147483648 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(n)=denominator((1/(2*pi))*int(exp(i*4*t)(-((pi-t)/i)^n),t,0,2*pi)), i=sqrt(-1); a(n)=2^A092391(n);

CROSSREFS

Sequence in context: A188117 A094502 A162459 * A180098 A124143 A173617

Adjacent sequences:  A129192 A129193 A129194 * A129196 A129197 A129198

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 02 2007

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.