Number of n X 1 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.
A195971
Number of n X 1 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =4a(4) =5a(5) =9a(6) =16a(7) =25a(8) =39a(9) =64a(10) =105a(11) =169a(12) =272a(13) =441a(14) =715a(15) =1156a(16) =1869a(17) =3025a(18) =4896a(19) =7921a(20) =12815a(21) =20736a(22) =33553a(23) =54289a(24) =87840a(25) =142129a(26) =229971a(27) =372100a(28) =602069a(29) =974169
External references
- oeis: A195971