105205

Appears in sequences

• Number of solenoidal flows (flow in = flow out) in a 3 X 3 square array with integer velocities -n .. n.at n=11A068722
• Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -11 .. 11.at n=2A068736
• Number of (w,x,y,z) with all terms in {1,...,n} and w > |x-y| + |y-z|.at n=23A212674
• Pentagonal numbers which are the arithmetic mean of two consecutive primes.at n=31A234531