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A078003 Expansion of (1-x)/(1-2*x+2*x^2-2*x^3). 2
1, 1, 0, 0, 2, 4, 4, 4, 8, 16, 24, 32, 48, 80, 128, 192, 288, 448, 704, 1088, 1664, 2560, 3968, 6144, 9472, 14592, 22528, 34816, 53760, 82944, 128000, 197632, 305152, 471040, 727040, 1122304, 1732608, 2674688, 4128768, 6373376, 9838592, 15187968, 23445504, 36192256 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..43.

FORMULA

a(n+1)=A077943(n+1)-A077943(n). [From R. J. Mathar, Aug 04 2008]

PROG

(PARI) Vec((1-x)/(1-2*x+2*x^2-2*x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2012

CROSSREFS

Sequence in context: A188346 A173531 A122788 * A081524 A021413 A082855

Adjacent sequences:  A078000 A078001 A078002 * A078004 A078005 A078006

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Nov 17 2002

STATUS

approved

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Last modified April 16 14:51 EDT 2014. Contains 240600 sequences.