53663
domain: N
Appears in sequences
- Composite numbers k that divide Fibonacci(k+1).at n=21A069107
- Odd Fibonacci pseudoprimes: odd composite numbers k such that either (1) k divides Fibonacci(k-1) if k == +-1 (mod 5) or (2) k divides Fibonacci(k+1) if k == +-2 (mod 5).at n=31A081264
- Odd composites m that divide Fibonacci(m)-1.at n=21A094394
- Odd numbers k that divide Lucas(k) + 1.at n=21A094399
- Numbers k that divide both Fibonacci(k+1) and Lucas(k) + 1.at n=14A094402
- Odd numbers k that divide Fibonacci(k) - 1 but not Fibonacci(k-1).at n=14A094409
- Numbers k that divide Fibonacci(k+1) but do not divide Fibonacci(k) + 1.at n=19A094412
- Numbers k such that the representation of k^2 is a substring of that of k!, in base 10.at n=10A113621
- Numbers k which divide the sum of the Fibonacci numbers F(1) through F(k) and such that k is not a multiple of 24.at n=36A124456
- Semiprimes k that divide Fibonacci(k+1).at n=14A177745
- Composite numbers k that divide both Fibonacci(k+1) and Fibonacci(2k+1)-1.at n=20A182504
- Composite numbers k that divide Fibonacci(k+1) or Fibonacci(k-1).at n=38A182554
- Partial sums of A299266.at n=41A299267
- Odd integers m that divide the sum of the first m nonzero Fibonacci numbers.at n=35A331976