A077372 Fibonacci numbers whose external digits form a Fibonacci number. Or Fibonacci numbers whose MSD and LSD form a Fibonacci number.

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 121393, 1836311903, 2504730781961, 10610209857723, 10284720757613717413913, 184551825793033096366333, 59425114757512643212875125, 155576970220531065681649693

Offset

1,4

Comments

Sequence can be easily generated up to >10000 terms with the appended Sage script. - Manfred Scheucher, Jun 02 2015

Links

Manfred Scheucher, Table of n, a(n) for n = 1..100

Manfred Scheucher, Sage Script

Prog

(Sage) F=[fibonacci(i) for i in [0..200]]
[x for x in F if x<10 or (x>10 and (10*x.digits()[-1]+x.digits()[0]) in F)]
# Tom Edgar, Jun 03 2015

Crossrefs

Cf. A077371, A077373.

Sequence in context: A073958 A074317 A077371 * A147659 A005181 A177376

Adjacent sequences: A077369 A077370 A077371 * A077373 A077374 A077375

Keyword

base,nonn

Author

Amarnath Murthy, Nov 06 2002

Extensions

More terms from Lior Manor, Nov 06 2002

Status

approved