A087753 a(n) = least k such that A005185(k)=n; or 0 if there is no such k.

1, 3, 4, 6, 7, 9, 0, 12, 16, 15, 18, 20, 0, 25, 0, 24, 32, 0, 36, 31, 35, 38, 41, 43, 50, 53, 0, 52, 0, 51, 65, 48, 64, 0, 67, 0, 71, 66, 69, 63, 79, 77, 80, 81, 86, 84, 87, 90, 0, 104, 0, 98, 110, 99, 116, 100, 125, 108, 0, 105, 123, 114, 129, 96, 139, 115, 0, 118, 142, 0, 126

Offset

1,2

Links

Table of n, a(n) for n=1..71.

Crossrefs

Cf. A005185.

Sequence in context: A044813 A154661 A275672 * A233334 A320300 A070762

Adjacent sequences: A087750 A087751 A087752 * A087754 A087755 A087756

Keyword

nonn

Author

Roger L. Bagula, Oct 02 2003

Extensions

Edited by N. J. A. Sloane, Nov 08 2005

Status

approved