129480

Appears in sequences

• a(n) = Sum_{k=0..n} (k+1) * A026648(n,k).at n=13A026975
• a(n) can be expressed as the difference of the squares of consecutive primes in just three distinct ways.at n=8A090783
• Record gaps between nonprime prime powers.at n=33A167186
• Number of length n+4 0..2 arrays with at most one downstep in every 4 consecutive neighbor pairs.at n=8A255103