Number of n X 4 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.
A223313
Number of n X 4 0..1 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.
Terms
- a(0) =16a(1) =57a(2) =454a(3) =1792a(4) =10788a(5) =43999a(6) =226126a(7) =874205a(8) =4025000a(9) =15472252a(10) =66378320a(11) =251166657a(12) =1040520624a(13) =3937703717a(14) =16021122364a(15) =60678306334a(16) =245065674186a(17) =932218789579
External references
- oeis: A223313