Number of lower triangles of a (2n-1)X(2n-1) 0..n array with new values introduced in row major order 0..n and no element unequal to more than one horizontal or vertical neighbor.
A194779
Number of lower triangles of a (2n-1)X(2n-1) 0..n array with new values introduced in row major order 0..n and no element unequal to more than one horizontal or vertical neighbor.
Terms
- a(0) =1a(1) =7a(2) =43a(3) =268a(4) =1740a(5) =11862a(6) =85013a(7) =639760a(8) =5045610a(9) =41615165a(10) =358185399a(11) =3210667490a(12) =29914284833a(13) =289187621900
External references
- oeis: A194779