1,1

Boris A. Kordemsky, The Moscow Puzzles, p. 142 (Chas. Scribner & Sons 1972).

Table of n, a(n) for n=1..4.

2438195760 is divisible by each of the integers from 2 through 18.

Sequence in context: A017289 A017397 A017661 * A289544 A258611 A120290

Adjacent sequences: A131010 A131011 A131012 * A131014 A131015 A131016

base,full,nonn,fini

Harvey P. Dale, Sep 22 2007, Jul 10 2008

approved