a(n) = 4*a(n-1) - 3*a(n-2), for n>3, with a(0) = 14, a(1) = 133, a(2) = 616, and a(3) = 2128.
A113976
a(n) = 4*a(n-1) - 3*a(n-2), for n>3, with a(0) = 14, a(1) = 133, a(2) = 616, and a(3) = 2128.
Terms
- a(0) =14a(1) =133a(2) =616a(3) =2128a(4) =6664a(5) =20272a(6) =61096a(7) =183568a(8) =550984a(9) =1653232a(10) =4959976a(11) =14880208a(12) =44640904a(13) =133922992a(14) =401769256a(15) =1205308048a(16) =3615924424a(17) =10847773552a(18) =32543320936a(19) =97629963088a(20) =292889889544a(21) =878669668912
External references
- oeis: A113976