A140231 a(n)=Ceiling[e^(n*(1+sqrt(5))/2)].

6, 26, 129, 647, 3263, 16453, 82971, 418433, 2110227, 10642223, 53670491, 270669172, 1365029469, 6884069717, 34717503879, 175086122783, 882988319045, 4453056354096, 22457500812922, 113256896535457, 571173289481198

Offset

1,1

Links

Table of n, a(n) for n=1..21.

Mathematica

Table[Ceiling[E^(n*GoldenRatio)], {n, 30}] (* Harvey P. Dale, Mar 12 2015 *)

Crossrefs

Cf. A001622; A094214; A104457; A098317; A002390; A139339; A139340; A139341; A139342; A139345; A139346; A139347; A139348; A139349; A139350.

Sequence in context: A307331 A298625 A046233 * A339685 A364744 A144037

Adjacent sequences: A140228 A140229 A140230 * A140232 A140233 A140234

Keyword

nonn

Author

Mohammad K. Azarian, May 13 2008

Status

approved