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A047451 Numbers that are congruent to {0, 6} mod 8. 10
0, 6, 8, 14, 16, 22, 24, 30, 32, 38, 40, 46, 48, 54, 56, 62, 64, 70, 72, 78, 80, 86, 88, 94, 96, 102, 104, 110, 112, 118, 120, 126, 128, 134, 136, 142, 144, 150, 152, 158, 160, 166, 168, 174, 176, 182, 184, 190 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

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)-10 (with a(1)=0). - Vincenzo Librandi, Aug 06 2010

a(n) =4*n-3+(-1)^n. G.f.  2*x^2*(3+x) / ( (1+x)*(x-1)^2 ). - R. J. Mathar, Oct 08 2011

a(n+1)=Sum_k>=0 {A030308(n,k)*b(k)} with b(0)=6 and b(k)=2^(k+2) for k>0. - Philippe Deléham, Oct 17 2011

a(n) = c((8/3)*c(3*n/2)), where c = ceiling. - Clark Kimberling, Jul 04 2012

PROG

(PARI) forstep(n=0, 200, [6, 2], print1(n", ")) \\ Charles R Greathouse IV, Oct 17 2011

CROSSREFS

Sequence in context: A315883 A315884 A178950 * A194399 A315885 A315886

Adjacent sequences:  A047448 A047449 A047450 * A047452 A047453 A047454

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified October 23 22:04 EDT 2018. Contains 316541 sequences. (Running on oeis4.)