23705

Appears in sequences

• Numbers k such that 7*(10^k - 1)/9 + 2*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).at n=11A077796
• Number of primes between successive Fibonacci numbers (including possibly the Fibonacci numbers themselves).at n=28A082602
• Number of primes p such that Fib(n+1) <= p < Fib(n+2), (where Fib = A000045).at n=27A095354
• Product of successive primes minus 2.at n=35A124669
• a(n) = ((8 + sqrt(5))^n - (8 - sqrt(5))^n)/(2*sqrt(5)).at n=4A153885
• a(n) = 196*n^2 - n.at n=10A158003
• a(n) = 121*n^2 - 11.at n=13A158539
• Sum of the largest parts in the partitions of n into 7 squarefree parts.at n=49A308960