521753

Properties

Appears in sequences

• Primes of the form 22*(n^2)+1 for which the sum of the digits is also of the form 22*(n^2)+1.at n=5A117050
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, 0, 1), (1, 0, 1), (1, 1, -1)}.at n=10A150361
• Prime numbersat n=43197