A099566 A099565(n)/n.

1, 2, 6, 6, 30, 30, 30, 240, 240, 240, 240, 240, 3120, 3120, 3120, 3120, 3120, 3120, 3120, 3120, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520, 65520

Offset

1,2

Comments

Notice that the runs of equal terms of this sequence gives the Fibonacci sequence. Also, if all duplicate terms are deleted, the resulting sequence, {1,2,6,30,240,3120,...}, appears to be A003266, the product of first n nonzero Fibonacci numbers F(1), ..., F(n).

Links

Table of n, a(n) for n=1..33.

Crossrefs

Cf. A099563, A099564, A099565.

Sequence in context: A056042 A056040 A333073 * A147299 A090549 A080326

Adjacent sequences: A099563 A099564 A099565 * A099567 A099568 A099569

Keyword

nonn

Author

John W. Layman, Oct 25 2004

Status

approved