Number of n X 2 0..1 arrays with exactly n+2-2 having value 1 and no three 1s forming an isosceles right triangle.

A272952

Number of n X 2 0..1 arrays with exactly n+2-2 having value 1 and no three 1s forming an isosceles right triangle.

Terms

    a(0) =2a(1) =6a(2) =10a(3) =21a(4) =34a(5) =62a(6) =100a(7) =171a(8) =276a(9) =458a(10) =740a(11) =1211a(12) =1958a(13) =3184a(14) =5150a(15) =8351a(16) =13510a(17) =21880a(18) =35400a(19) =57301a(20) =92712a(21) =150036a(22) =242760a(23) =392821a(24) =635594a(25) =1028442a(26) =1664050a(27) =2692521a(28) =4356586a(29) =7049138

External references