A071885 Trajectory of 38 under map x -> A002487(x)*A002487(x+1).

38, 70, 117, 198, 368, 210, 558, 1312, 693, 3920, 2438, 6900, 17138, 43792, 105939, 553150, 862695, 5466578, 262720694, 8088309190, 155799611901, 2918284055518, 415202250061643, 1166813484199476, 224311803609338424

Offset

0,1

Links

Table of n, a(n) for n=0..24.

Crossrefs

Cf. A002487, A071884, A071886, A071887.

Sequence in context: A321997 A343974 A335483 * A032506 A044104 A044485

Adjacent sequences: A071882 A071883 A071884 * A071886 A071887 A071888

Keyword

nonn

Author

N. J. A. Sloane and J. H. Conway, Jun 10 2002

Status

approved