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A047358 Numbers that are congruent to {2, 3} mod 7. 0
2, 3, 9, 10, 16, 17, 23, 24, 30, 31, 37, 38, 44, 45, 51, 52, 58, 59, 65, 66, 72, 73, 79, 80, 86, 87, 93, 94, 100, 101, 107, 108, 114, 115, 121, 122, 128, 129, 135, 136, 142, 143, 149, 150, 156, 157, 163, 164, 170 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n)=7*n-a(n-1)-9, n>1 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 05 2010]

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

CROSSREFS

Sequence in context: A191568 A030743 A098020 * A003140 A057234 A109636

Adjacent sequences:  A047355 A047356 A047357 * A047359 A047360 A047361

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 12:25 EST 2012. Contains 205786 sequences.