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A072309
a(n)-th Fibonacci number is the smallest Fibonacci number containing exactly n 5's.
0
5, 10, 60, 85, 124, 125, 207, 167, 211, 275, 295, 335, 416, 391, 435, 405, 472, 516, 555, 625, 663, 693, 634, 799, 821, 765, 842, 840, 850, 1048, 975, 1037, 851, 1207, 977, 1302, 1194, 1306, 1182, 1185, 1466, 1549, 1237, 1567, 1585, 1485, 1700, 1656, 1636
OFFSET
1,1
EXAMPLE
a(2)=10 since 10th Fibonacci number i.e. 55 contains exactly two 5's.
CROSSREFS
Cf. A000045.
Sequence in context: A271295 A354736 A005438 * A328332 A240647 A062162
KEYWORD
base,nonn
AUTHOR
Shyam Sunder Gupta, Jul 14 2002
EXTENSIONS
a(21)-a(49) from Alois P. Heinz, Apr 26 2017
STATUS
approved