The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A047547 Numbers that are congruent to {0, 2, 3, 4, 7} mod 8. 1
 0, 2, 3, 4, 7, 8, 10, 11, 12, 15, 16, 18, 19, 20, 23, 24, 26, 27, 28, 31, 32, 34, 35, 36, 39, 40, 42, 43, 44, 47, 48, 50, 51, 52, 55, 56, 58, 59, 60, 63, 64, 66, 67, 68, 71, 72, 74, 75, 76, 79, 80, 82, 83, 84, 87, 88, 90, 91, 92, 95, 96, 98, 99, 100, 103 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..65. Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,1,-1). FORMULA From Chai Wah Wu, Jun 10 2016: (Start) a(n) = a(n-1) + a(n-5) - a(n-6) for n > 6. G.f.: x^2*(x^4 + 3*x^3 + x^2 + x + 2)/(x^6 - x^5 - x + 1). (End) From Wesley Ivan Hurt, Jul 28 2016: (Start) a(n) = a(n-5) + 8 for n>5. a(n) = (40*n - 40 - 7*(n mod 5) + 3*((n+1) mod 5) + 3*((n+2) mod 5) - 2*((n+3) mod 5) + 3*((n+4) mod 5))/25. a(5k) = 8k-1, a(5k-1) = 8k-4, a(5k-2) = 8k-5, a(5k-3) = 8k-6, a(5k-4) = 8k-8. (End) MAPLE A047547:=n->8*floor(n/5)+[(0, 2, 3, 4, 7)][(n mod 5)+1]: seq(A047547(n), n=0..100); # Wesley Ivan Hurt, Jul 28 2016 MATHEMATICA Select[Range[0, 100], MemberQ[{0, 2, 3, 4, 7}, Mod[#, 8]]&] (* Harvey P. Dale, Jun 14 2011 *) PROG (Magma) [n : n in [0..150] | n mod 8 in [0, 2, 3, 4, 7]]; // Wesley Ivan Hurt, Jul 28 2016 CROSSREFS Sequence in context: A056033 A302123 A286337 * A014456 A349152 A089190 Adjacent sequences: A047544 A047545 A047546 * A047548 A047549 A047550 KEYWORD nonn,easy AUTHOR N. J. A. Sloane STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 12 12:08 EDT 2024. Contains 375092 sequences. (Running on oeis4.)