A057036 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 A057036(n)=i(2n-1).

1, 2, 2, 1, 3, 1, 3, 5, 2, 4, 6, 2, 4, 6, 1, 3, 5, 7, 1, 3, 5, 7, 9, 2, 4, 6, 8, 10, 2, 4, 6, 8, 10, 1, 3, 5, 7, 9, 11, 1, 3, 5, 7, 9, 11, 13, 2, 4, 6, 8, 10, 12, 14, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15, 1, 3, 5, 7, 9, 11, 13, 15, 17, 2, 4, 6, 8

Offset

1,2

Comments

R(i,j)=C(i+j-1,2)+i; cf. A000027.

j(2n-1)=A057037(n).

Links

Table of n, a(n) for n=1..81.

Crossrefs

Sequence in context: A159876 A173493 A044924 * A069004 A182490 A053274

Adjacent sequences: A057033 A057034 A057035 * A057037 A057038 A057039

Keyword

nonn

Author

Clark Kimberling, Jul 30 2000

Status

approved