Number of n X 3 0..1 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..1 introduced in row major order.
A240631
Number of n X 3 0..1 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..1 introduced in row major order.
Terms
- a(0) =4a(1) =25a(2) =129a(3) =637a(4) =3147a(5) =15590a(6) =77269a(7) =382933a(8) =1897681a(9) =9404215a(10) =46603960a(11) =230952833a(12) =1144520961a(13) =5671842895a(14) =28107656217a(15) =139291647132a(16) =690280357055
External references
- oeis: A240631