88601

Appears in sequences

• Strong pseudoprimes to base 48.at n=32A020274
• Composite numbers k such that k divides F(k-1) where F(j) are the Fibonacci numbers.at n=23A069106
• Numbers k that divide Fibonacci(k-1) but do not divide Fibonacci(k) - 1.at n=12A094410
• Each term is previous term plus floor of harmonic mean of two previous terms.at n=21A114831
• Semiprimes k that divide Fibonacci(k-1).at n=13A177086
• G.f.: exp( Sum_{n>=1} A203414(n)*x^n/n ) where A203414(n) = n*Pell(n)*Sum_{d|n} 1/(d*Pell(d)).at n=12A203413
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero.at n=39A208598
• Nonprime n not divisible by 2 or 3 such that Fibonacci(n-1) is congruent to (1 - Legendre(n,5))/2 modulo n.at n=30A220292