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 A057043(n)=i(L(n)), where L(n) is the n-th Lucas number.
A057043
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 A057043(n)=i(L(n)), where L(n) is the n-th Lucas number.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =1a(6) =3a(7) =1a(8) =2a(9) =10a(10) =3a(11) =9a(12) =22a(13) =25a(14) =23a(15) =38a(16) =62a(17) =1a(18) =107a(19) =33a(20) =76a(21) =166a(22) =263a(23) =176a(24) =397a(25) =430a(26) =227a(27) =688a(28) =811a(29) =1481
External references
- oeis: A057043