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A047523 Numbers that are congruent to {0, 1, 7} mod 8. 2
0, 1, 7, 8, 9, 15, 16, 17, 23, 24, 25, 31, 32, 33, 39, 40, 41, 47, 48, 49, 55, 56, 57, 63, 64, 65, 71, 72, 73, 79, 80, 81, 87, 88, 89, 95, 96, 97, 103, 104, 105, 111, 112, 113, 119, 120, 121, 127, 128, 129, 135, 136 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

Index to sequences with linear recurrences with constant coefficients, signature (1,0,1,-1)

FORMULA

G.f.  x^2*(1+6*x+x^2)  / ( (1+x+x^2)*(x-1)^2 ). - R. J. Mathar, Oct 08 2011

CROSSREFS

Sequence in context: A037369 A076599 A067197 * A108177 A165480 A048029

Adjacent sequences:  A047520 A047521 A047522 * A047524 A047525 A047526

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.