A177372 Fibonacci numbers whose decimal expansion does not contain any digit 7.

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 610, 2584, 4181, 10946, 46368, 121393, 196418, 514229, 832040, 1346269, 14930352, 39088169, 63245986, 102334155, 165580141, 1836311903, 12586269025, 32951280099, 139583862445, 365435296162

Offset: 1

Author

Carmine Suriano, May 07 2010

Keywords

• nonn
• base

Comments

Probability that Fib(n) contains no digit 7 goes to zero as n grows to infinity. I suppose that the maximum number is Fib(224) having 47 digits.

Examples

			a(14)=610 since it is the 14th Fibonacci containing no 7's.
		

Crossrefs

Cf. A000045, A177194, A177195, A177231, A177245, A177246, A176253, A177247

Programs

Mathematica

Select[Fibonacci[Range[100]],DigitCount[#,10,7]==0&] (* Harvey P. Dale, Dec 13 2014 *)