Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057040(n)=i(F(n)), where F(n) is the n-th Fibonacci number.

A057040

Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057040(n)=i(F(n)), where F(n) is the n-th Fibonacci number.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =3a(7) =6a(8) =6a(9) =10a(10) =11a(11) =8a(12) =2a(13) =26a(14) =15a(15) =41a(16) =1a(17) =28a(18) =86a(19) =95a(20) =68a(21) =133a(22) =216a(23) =8a(24) =334a(25) =115a(26) =167a(27) =605a(28) =638a(29) =635

External references