A094312 Beginning with 1, re-arrangement of natural numbers such that {a(2n-1)*a(2n)}^(1/2) and {a(2n)+a(2n+1)}/2 are integers.

1, 4, 2, 8, 6, 216, 10, 1000, 12, 3, 5, 125, 7, 343, 9, 16, 14, 2744, 18, 32, 20, 45, 11, 1331, 13, 2197, 15, 3375, 17, 4913, 19, 6859, 21, 9261, 23, 12167, 25, 49, 27, 243, 29

Offset

1,2

Links

Table of n, a(n) for n=1..41.

Crossrefs

Cf. A094313.

Sequence in context: A339991 A098798 A131783 * A182848 A228834 A197016

Adjacent sequences: A094309 A094310 A094311 * A094313 A094314 A094315

Keyword

nonn

Author

Amarnath Murthy, Apr 30 2004

Status

approved