45341

Properties

Appears in sequences

• Primes p such that the p-1 digits of the decimal expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1.at n=4A072359
• Positions of hexagonal pyramidal numbers in the EKG sequence.at n=40A144080
• a(n) = Sum_{i=0..n} digsum(i)^4, where digsum(i) = A007953(i).at n=25A231689
• Prime numbersat n=4705