157351

Properties

Appears in sequences

• Partial sums of sequence {1/(i^2+1): i=0..n} (numerators).at n=6A033467
• Primes with 21 as smallest positive primitive root.at n=19A061333
• 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, 1), (-1, 0, 1), (-1, 1, -1), (1, 0, 0)}.at n=14A148006
• Primes of the form 2*n^2 + 10*n + 3.at n=28A221902
• Prime numbersat n=14472