190632

Appears in sequences

• a(n) can be expressed as the difference of the squares of consecutive primes in just three distinct ways.at n=11A090783
• Numbers k such that 21^k - 2 is a prime.at n=24A128461
• Number of length 5 0..n arrays least squares fitting to a zero slope straight line, with a single point taken as having zero slope.at n=24A245135
• Number of n-step self-avoiding walks on a square lattice where no step can be in the same direction as the previous step.at n=23A337353