login
Fibonacci numbers whose external digits form a Fibonacci number. Or Fibonacci numbers whose MSD and LSD form a Fibonacci number.
3

%I #18 Jun 07 2015 11:56:20

%S 0,1,1,2,3,5,8,13,21,34,55,89,121393,1836311903,2504730781961,

%T 10610209857723,10284720757613717413913,184551825793033096366333,

%U 59425114757512643212875125,155576970220531065681649693

%N Fibonacci numbers whose external digits form a Fibonacci number. Or Fibonacci numbers whose MSD and LSD form a Fibonacci number.

%C Sequence can be easily generated up to >10000 terms with the appended Sage script. - _Manfred Scheucher_, Jun 02 2015

%H Manfred Scheucher, <a href="/A077372/b077372.txt">Table of n, a(n) for n = 1..100</a>

%H Manfred Scheucher, <a href="/A077372/a077372.sage.txt">Sage Script</a>

%o (Sage) F=[fibonacci(i) for i in [0..200]]

%o [x for x in F if x<10 or (x>10 and (10*x.digits()[-1]+x.digits()[0]) in F)]

%o # _Tom Edgar_, Jun 03 2015

%Y Cf. A077371, A077373.

%K base,nonn

%O 1,4

%A _Amarnath Murthy_, Nov 06 2002

%E More terms from _Lior Manor_, Nov 06 2002