Number of lower triangles of a (2n+3)X(2n+3) 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.

A194783

Number of lower triangles of a (2n+3)X(2n+3) 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) =23a(1) =219a(2) =1641a(3) =11686a(4) =84727a(5) =639325a(6) =5044981a(7) =41614291a(8) =358184223a(9) =3210665949a(10) =29914282858a(11) =289187619416

External references