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A047325 Numbers that are congruent to {1, 2, 5, 6} mod 7. 0
1, 2, 5, 6, 8, 9, 12, 13, 15, 16, 19, 20, 22, 23, 26, 27, 29, 30, 33, 34, 36, 37, 40, 41, 43, 44, 47, 48, 50, 51, 54, 55, 57, 58, 61, 62, 64, 65, 68, 69, 71, 72, 75, 76, 78, 79, 82, 83, 85, 86, 89, 90, 92, 93, 96, 97 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..56.

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

FORMULA

G.f. x*(1+x+3*x^2+x^3+x^4) / ( (1+x)*(1+x^2)*(x-1)^2 ). - R. J. Mathar, Dec 04 2011

CROSSREFS

Sequence in context: A049636 A045573 A161152 * A102611 A176114 A057915

Adjacent sequences:  A047322 A047323 A047324 * A047326 A047327 A047328

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 21 12:55 EDT 2013. Contains 225488 sequences.