23857

Properties

Appears in sequences

• Numerators of continued fraction convergents to sqrt(799).at n=4A042540
• Prime number spiral (clockwise, Northeast spoke).at n=26A054553
• Primes p such that the sum of the digits of p is not prime, but the sum of each digit raised to the 4th power is prime.at n=18A091368
• Primes that are a concatenation of 2, 3 and a prime.at n=28A101218
• Prime numbers p such that p^3 - (p-1)^2 and p^3 + (p-1)^2 are also primes.at n=30A137474
• 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), (0, 1, 0), (1, 0, 1)}.at n=8A150247
• Primes p such that (p-1)*p*(p+1)-p+2 and (p-1)*p*(p+1)+p-2 are primes.at n=35A154944
• Number of arrays of n integers in -3..3 with sum zero and equal numbers of elements greater than zero and less than zero.at n=6A201806
• T(n,k)=Number of arrays of n integers in -k..k with sum zero and equal numbers of elements greater than zero and less than zero.at n=42A201811
• Number of arrays of 7 integers in -n..n with sum zero and equal numbers of elements greater than zero and less than zero.at n=2A201815
• Primes p such that if q is the next prime after p then the concatenation of p with q and the concatenation of q with p are both primes.at n=36A225575
• Primes p such that A179382((p+1)/2) = (p-1)/16.at n=38A225759
• Primes of form n^2 + 14641.at n=11A256839
• Number of nX6 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=6A316755
• Number of n X 7 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=5A316756
• Primes in A301916 but not in A045318.at n=23A320481
• Primes of the form p+q*(r+s), where p,q,r,s are consecutive primes.at n=10A343449
• Prime numbersat n=2653