303732

Appears in sequences

• Triangle of binomial(n,k)*(binomial(n+k,k)-binomial(n+k-2,k-1)).at n=52A080721
• Numbers n such that n*((2^61-1)^3) - 1 and n*((2^61-1)^3) + 1 are twin primes.at n=20A099230
• Partial sums of A064059.at n=12A115132
• Number of permutations p() of 1..n+2 with centered difference p(i+1)-p(i-1) < 0 exactly once.at n=10A180879