A382922 Numbers k such that Fibonacci(k) is a Smith number.

31, 77, 231, 354, 523, 535, 631, 819, 827, 830, 991, 1234

Offset: 1

Author

Shyam Sunder Gupta, Apr 08 2025

Keywords

• nonn
• base
• more

Examples

			31 is a term since Fibonacci(31) = 1346269 = 557 * 2417, and 1346269 is a Smith number (1 + 3 + 4 + 6 + 2 + 6 + 9 = 5 + 5 + 7 + 2 + 4 + 1 + 7).
		

Links

• Shyam Sunder Gupta, Smith Numbers, Exploring the Beauty of Fascinating Numbers, Springer (2025) Ch. 4, 127-157.

Crossrefs

Cf. A000045, A006753.

Extensions

a(5)-a(12) from Amiram Eldar, Apr 09 2025