91781

Properties

Appears in sequences

• 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, 1, -1), (0, 0, 1), (0, 1, 0), (1, -1, 0)}.at n=10A149867
• In this sequence each prime ends a prime century. Place a 0 between the final two digits, and raise the 100s digit by 1, to form the first prime of the next century.at n=14A156083
• Numbers that are the smallest of four consecutive primes, no three of which sum to a nonprime.at n=20A298763
• Triangle of numerators for rational convergents to Taylor series of 1/Gamma(x+1).at n=41A386675
• First of four consecutive primes with product p and sum s such that |s^2-p| and s^2+p are both prime.at n=30A391121
• Prime numbersat n=8868