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A072311 a(n)-th Fibonacci number is the smallest Fibonacci number containing exactly n 7's. 0

%I #5 Apr 26 2017 16:42:59

%S 16,14,54,49,107,116,132,223,236,310,249,396,299,359,414,521,476,518,

%T 566,555,689,715,740,700,754,704,1032,895,1017,934,946,1006,1131,1305,

%U 1186,1261,1352,1254,1425,1321,1553,1410,1493,1668,1528,1734,1590,1441,1841

%N a(n)-th Fibonacci number is the smallest Fibonacci number containing exactly n 7's.

%e a(2)=14 since 14th Fibonacci number i.e. 377 contains exactly two 7's.

%Y Cf. A000045.

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Jul 14 2002

%E a(21)-a(49) from _Alois P. Heinz_, Apr 26 2017

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Last modified September 12 20:35 EDT 2024. Contains 375854 sequences. (Running on oeis4.)