1,1

Starting with a(2)=7, the sequence is identical to A050633.

Table of n, a(n) for n=1..7.

Cf. A050630, A048560, A050637.

Sequence in context: A067975 A065298 A091877 * A235714 A146759 A303031

Adjacent sequences: A050628 A050629 A050630 * A050632 A050633 A050634

nonn,base,more

Patrick De Geest, Jul 15 1999

a(7) from Max Alekseyev, Feb 15 2012

approved