STATUS
reviewed
approved
The OEIS is supported by the many generous donors to the OEIS Foundation.
Revision History for A079973
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
Number of permutations satisfying -k <= p(i) - i <= r and p(i) - i not in I, i=1..n, with k=1, r=4, I={0,3}.
(history; published version)
(history; published version)
STATUS
proposed
reviewed
STATUS
editing
proposed
MATHEMATICA
CoefficientList[Series[-1/(x^5 + x^3 + x^2 - 1), {x, 0, 44}], x] (* Michael De Vlieger, Mar 02 2017 *)
STATUS
reviewed
editing
STATUS
proposed
reviewed
STATUS
editing
proposed
COMMENTS
For n>=2, a(n) is number of compositions of n -2 with elements from the set {1,2,3} such that no two odd numbers appear consecutively. - Armend Shabani, Mar 01 2017
COMMENTS
Starting from the third term, this sequence presents For n>=2, a(n) is number of compositions of n with elements from the set {1,2,3} such that no two odd numbers appear consecutively. - Armend Shabani, Mar 01 2017
STATUS
proposed
editing
STATUS
editing
proposed
LINKS
<a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (0,1,1,0,1).
STATUS
proposed
editing