A097510 Leftmost terms of the triangle A097825.

1, 2, 2, 3, 2, 1, 6, 1, 9, 7, 5, 11, 3, 14, 1, 8, 7, 6, 9, 4, 11, 6, 20, 8, 20, 10, 20, 28, 2, 29, 2, 29, 4, 23, 12, 11, 26, 9, 30, 7, 34, 5, 38, 3, 42, 25, 23, 29, 21, 33, 19, 37, 17, 41, 15, 46, 9, 46, 11, 46, 13, 40, 21, 40, 23, 4, 66, 6, 66, 8, 66, 16, 60, 18, 60, 20, 60, 68, 12, 72, 10

Offset

1,2

Links

John Tyler Rascoe, Table of n, a(n) for n = 1..10000

Prog

(PARI) a(n) = local(x); x = n; forstep (i = n - 1, 2, -1, if (i%2, if (x <= i, x = i + 1 - x), if (x + i > n, x = n + n + 1 - i - x))); x; \\ David Wasserman, Dec 27 2007

Crossrefs

Cf. A097511, A097825.

Sequence in context: A104897 A185694 A305294 * A237619 A156747 A318958

Adjacent sequences: A097507 A097508 A097509 * A097511 A097512 A097513

Keyword

easy,nonn

Author

Leroy Quet, Aug 26 2004

Extensions

More terms from David Wasserman, Dec 27 2007

Status

approved