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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A367651 Inverse of permutation of A160079. 1
0, 1, 3, 4, 2, 5, 8, 7, 6, 12, 9, 11, 16, 10, 13, 20, 15, 14, 24, 17, 19, 28, 18, 21, 32, 23, 22, 36, 25, 27, 40, 26, 29, 44, 31, 30, 48, 33, 35, 52, 34, 37, 56, 39, 38, 60, 41, 43, 64, 42, 45, 68, 47, 46, 72, 49, 51, 76, 50, 53, 80, 55, 54, 84, 57, 59 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
Permutation of nonnegative numbers.
LINKS
FORMULA
a(n) = 2*a(n-9) - a(n-18) for n >= 18.
a(9*n) = 12*n, a(9*n+1) = 8*n+1, a(9*n+2) = 8*n+3, a(9*n+3) = 12*n+4, a(9*n+4) = 8*n+2, a(9*n+5) = 8*n+5, a(9*n+6) = 12*n+8, a(9*n+7) = 8n+7, a(9*n+8) = 8*n+6.
a(n) = a(n-3) + a(n-9) - a(n-12) for n >= 12.
G.f.: (x + 3*x^2 + 4*x^3 + x^4 + 2*x^5 + 4*x^6 + 5*x^7 + x^8 + 4*x^9 + x^10 + 2*x^11) / ((1 - x)^2*(1 + x + x^2)^2*(1 + x^3 + x^6)).
CROSSREFS
Cf. A160079.
Sequence in context: A127296 A276958 A275848 * A214929 A205152 A162196
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Nov 25 2023
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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 21 14:09 EDT 2024. Contains 374474 sequences. (Running on oeis4.)