A143741 Aliquot sequence starting at 72.

72, 123, 45, 33, 15, 9, 4, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset

0,1

Links

Table of n, a(n) for n=0..101.

Formula

a(n+1) = A001065(a(n)). - R. J. Mathar, Oct 11 2017

Crossrefs

Sequence in context: A090784 A291805 A266345 * A227166 A250772 A345541

Adjacent sequences: A143738 A143739 A143740 * A143742 A143743 A143744

Keyword

nonn,easy

Author

N. J. A. Sloane, Nov 30 2008

Status

approved