40597

Properties

Appears in sequences

• Convolution of sequence of primes with sequence sigma(n).at n=34A086718
• Primes of the form 5*x^2 - 2*y^2, where x and y are successive natural numbers.at n=18A177077
• Primes which are the fourth element of a generalized Wieferich sequence.at n=15A179400
• Fibonacci-Collatz sequence: a(1)=0, a(2)=1; for n>2, let fib=a(n-1)+a(n-2); if fib is odd then a(n)=3*fib+1 else a(n)=fib/2.at n=17A181717
• Primes of the form k*(k+2)/3 - 3, k>2.at n=38A262203
• Primes p such that 2*p + 31 is a square.at n=16A269786
• Number of periodic multisets of compositions of total weight n.at n=38A303552
• Prime numbersat n=4256