A057685 Trajectory of 19 under the `19x+1' map.

19, 362, 181, 3440, 1720, 860, 430, 215, 43, 818, 409, 7772, 3886, 1943, 36918, 18459, 6153, 2051, 293, 5568, 2784, 1392, 696, 348, 174, 87, 29, 552, 276, 138, 69, 23, 438, 219, 73, 1388, 694, 347, 6594, 3297, 1099, 157, 2984, 1492, 746

Offset: 0

Author

N. J. A. Sloane, Oct 20 2000

Keywords

• nonn
• easy

Comments

See A057684 for definition.

Links

• T. D. Noe, Table of n, a(n) for n=0..72
• Index entries for linear recurrences with constant coefficients, signature (0,0,0,1).

Crossrefs

Cf. A057446, A057216, A057522, A057534, A057614. See also A033478, A057688, A057684, A057685, A057686, A057687, A057689, A057690, A057691.

Programs

Mathematica

Px1[p_,n_]:=Catch[For[i=1,iPaolo Xausa, Dec 10 2023 *)