STATUS
proposed
approved
The OEIS is supported by the many generous donors to the OEIS Foundation.
Revision History for A371125
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
STATUS
editing
proposed
FORMULA
a(n) = Sum_{k=0..n} binomilabinomial(n+5*k,n-k).
STATUS
proposed
editing
STATUS
editing
proposed
FORMULA
a(n) = A005708(6*n).
a(n) = Sum_{k=0..n} binomila(n+5*k,n-k).
CROSSREFS
Cf. A005708.
NAME
a(n) = Sum_{k=0..n} binomila(n+5*k,n-k).
Number of compositions of 6*n into parts 1 and 6.
FORMULA
a(n) = 7*a(n-1) - 15*a(n-2) + 20*a(n-3) - 15*a(n-4) + 6*a(n-5) - a(n-6).
LINKS
<a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (7,-15,20,-15,6,-1).