186166domain: NAppears in sequencesBinomial transform of A027826.at n=11A152226Number of unimodal maps [1..n]->[0..3].at n=20A223659Sum of piles of first n primes: a(n) = Sum(prime(i)*(2*i-1): 1<=i<=n).at n=40A316322a(n) = Sum_{k=0..n} (-1)^k * binomial(4*n-k+2,n-k).at n=6A390547