OFFSET
0,2
COMMENTS
Tiling algorithm see A351322.
LINKS
Index entries for linear recurrences with constant coefficients, signature (6,38,0,-68,24,-3).
FORMULA
G.f.: (1 - 3*x - 8*x^2 + 3*x^3 - x^4) / (1 - 6*x - 38*x^2 + 68*x^4 - 24*x^5 + 3*x^6).
a(n) = 6*a(n-1) + 38*a(n-2) - 68*a(n-4) + 24*a(n-5) - 3*a(n-6).
EXAMPLE
a(2) = 48, see 2 X 3, A354131.
PROG
(Maxima), see A352589.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Gerhard Kirchner, May 18 2022
STATUS
approved