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

Author

N. J. A. Sloane, Sep 02 2015

Keywords

• nonn

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.

Extensions

More terms from Lars Blomberg, Sep 29 2015