1,1

These are positive integers i for which there does not exist any k such that A007895(i+k)=k.

A. Karttunen, Table of n, a(n) for n = 1..10000

(Scheme with Antti Karttunen's Intseq-library):

(define A219638 (COMPLEMENT 1 A219640))

A219640, A219641, A219648. Analogous sequence for binary system: A055938, for factorial number system: A219658.

Sequence in context: A123053 A221129 A138289 * A105359 A105355 A183545

Adjacent sequences: A219635 A219636 A219637 * A219639 A219640 A219641

nonn

Antti Karttunen, Nov 24 2012

approved