A072310 a(n)-th Fibonacci number is the smallest Fibonacci number containing exactly n 6's.

15, 20, 57, 84, 106, 159, 108, 196, 298, 247, 320, 284, 361, 394, 415, 480, 465, 462, 512, 648, 598, 623, 731, 804, 805, 553, 938, 985, 1033, 903, 1065, 1041, 1281, 1169, 1244, 1221, 1393, 1170, 1362, 1398, 1463, 1401, 1637, 1431, 1596, 1647, 1846, 1945, 1845

Offset

1,1

Links

Table of n, a(n) for n=1..49.

Example

a(2)=20 since 20th Fibonacci number i.e. 6765 contains exactly two 6's.

Crossrefs

Cf. A000045.

Sequence in context: A038352 A043125 A043905 * A166645 A033708 A343821

Adjacent sequences: A072307 A072308 A072309 * A072311 A072312 A072313

Keyword

base,nonn

Author

Shyam Sunder Gupta, Jul 14 2002

Extensions

a(21)-a(49) from Alois P. Heinz, Apr 26 2017

Status

approved