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A047436 Numbers that are congruent to {5, 6} mod 8. 0
5, 6, 13, 14, 21, 22, 29, 30, 37, 38, 45, 46, 53, 54, 61, 62, 69, 70, 77, 78, 85, 86, 93, 94, 101, 102, 109, 110, 117, 118, 125, 126, 133, 134, 141, 142, 149, 150, 157, 158, 165, 166, 173, 174, 181, 182, 189, 190 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = a(n-1) + a(n-2) - a(n-3). - Vincenzo Librandi, Aug 06 2010

LINKS

Table of n, a(n) for n=1..48.

Index entries for linear recurrences with constant coefficients, signature (1,1,-1).

FORMULA

a(n) = 8*n - a(n-1) - 5, n > 1. - Vincenzo Librandi, Aug 06 2010

G.f. x*(5+x+2*x^2) / ( (1+x)*(x-1)^2 ). - R. J. Mathar, Dec 07 2011

CROSSREFS

Sequence in context: A173074 A099473 A051572 * A061437 A067245 A059176

Adjacent sequences:  A047433 A047434 A047435 * A047437 A047438 A047439

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified April 19 03:11 EDT 2019. Contains 322237 sequences. (Running on oeis4.)