A261674 Odd numbers which take a record number of steps to reach {1, 9, or 33} under iteration of the map described in the comments section of A135730.

1, 3, 5, 11, 17, 35, 49, 65, 89, 113, 129, 173, 305, 609, 641, 1281, 1353, 1805, 2417, 2849, 3377, 5961, 7949, 11009, 13857, 14601, 19469, 22049, 36545, 43313, 77001, 95793, 108041, 108161, 128049, 128193, 170925, 227901, 252929, 299777, 532937, 609801, 722729

Offset

1,2

Comments

The corresponding numbers of steps are listed in A261673.

Links

Lars Blomberg, Table of n, a(n) for n = 1..88

Crossrefs

Cf. A261671, A135730, A261673.

Sequence in context: A006170 A147071 A006171 * A319632 A060647 A320353

Adjacent sequences: A261671 A261672 A261673 * A261675 A261676 A261677

Keyword

nonn

Author

N. J. A. Sloane, Sep 02 2015

Extensions

More terms from Lars Blomberg, Sep 29 2015

Status

approved