1,1

The numbers in the sequence are conjectured to be restricted to 9,52, or 61. Note that 61-52 = 9, (52+2)/(61-52) = (52+2)/9 = 6, (61+2)/(61-52) = (61+2)/9 = 7 and we have lcm(9,52,61) =28548 = 13^4 - 13 and (52+2)/9 + (61+2)/9 = 6+7 = 13.

Table of n, a(n) for n=1..81.

Stephen Crowley, A Mysterious Three Term Integer Sequence Related to a Lambert W Function Solution to a Certain Transcendental Equation

a(n) = A172468(n+1) - A172468(n).

Cf. A172468, A167389.

Sequence in context: A181161 A152580 A197722 * A120665 A163941 A289418

Adjacent sequences: A172467 A172468 A172469 * A172471 A172472 A172473

nonn

Stephen Crowley, Feb 04 2010

approved