32008

Appears in sequences

• Seidel's triangle, read by rows.at n=45A014781
• Triangle read by rows: Each row is constructed by forming the partial sums of the previous row, reading from the right and at every other row repeating the final term.at n=45A099959
• G.f.: (1+x+x^2-sqrt(1+2x+3x^2-2x^3+x^4))*2.at n=20A129507
• The Genocchi triangle read by rows, T(n,k) for n>=0 and 0<=k<=n.at n=24A297703
• Largest even k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists.at n=11A357573