A057055 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 A057055(n)=i(C(n,3)).

1, 1, 4, 5, 7, 1, 6, 15, 12, 10, 10, 13, 20, 32, 14, 36, 23, 12, 4, 55, 1, 8, 22, 44, 75, 36, 84, 55, 30, 10, 100, 98, 104, 119, 20, 51, 94, 10, 75, 4, 95, 41, 162, 129, 105, 91, 88, 97, 119, 155, 206, 51, 129, 225, 99, 228, 124, 29

Offset

3,3

Links

Table of n, a(n) for n=3..60.

Crossrefs

Sequence in context: A319260 A237196 A322711 * A177883 A245422 A272005

Adjacent sequences: A057052 A057053 A057054 * A057056 A057057 A057058

Keyword

nonn

Author

Clark Kimberling, Jul 30 2000

Status

approved