A268124 a(n) = n^4 * (n+3)^6 * 4^(-n).

0, 1024, 15625, 59049, 117649, 160000

Offset

0,2

Comments

This is an example of a simple sequence which generates integers for a while, but then generates no further integers.

Links

Table of n, a(n) for n=0..5.

Example

The third term is a(2), which is 2^4 * 5^6 * 4^-2, which is 15625.

Prog

(PARI) a(n)=n^4*(n+3)^6/4^n \\ Charles R Greathouse IV, Sep 06 2016

Crossrefs

Sequence in context: A221488 A378246 A138334 * A205611 A016781 A247933

Adjacent sequences: A268121 A268122 A268123 * A268125 A268126 A268127

Keyword

nonn,fini,full,easy

Author

Clive Tooth, Jan 26 2016

Status

approved