|
| |
|
|
A072351
|
|
Smallest n-digit Fibonacci numbers.
|
|
10
| |
|
|
1, 13, 144, 1597, 10946, 121393, 1346269, 14930352, 102334155, 1134903170, 12586269025, 139583862445, 1548008755920, 10610209857723, 117669030460994, 1304969544928657, 14472334024676221, 160500643816367088
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
FORMULA
| A072351(n)=floor(.5+phi^ceil((n*log(10)+.5*log(5))/log(phi))/sqrt(5)) [From Franklin T. Adams-Watters, May 27 2011]
|
|
|
EXAMPLE
| a(3)=144, as 144 is smallest 3-digit Fibonacci number.
|
|
|
PROG
| (PARI) A072351(n, phi=(sqrt(5)+1)/2)=round(phi^ceil((n*log(10)+log(5)/2)/log(phi))/sqrt(5)) \\ - Franklin T. Adams-Watters, May 27 2011.
|
|
|
CROSSREFS
| Cf. A105710, A105712, A105713, A105714, A105715, A105716, A105717, A105718, A105719.
Sequence in context: A015672 A098298 A045725 * A134489 A064525 A065411
Adjacent sequences: A072348 A072349 A072350 * A072352 A072353 A072354
|
|
|
KEYWORD
| base,nonn
|
|
|
AUTHOR
| Shyam Sunder Gupta (guptass(AT)rediffmail.com), Jul 17 2002
|
| |
|
|
