2158695

Appears in sequences

• Triangle T(n,k) read by rows of the smallest n-gonal number greater than 1 that is also k-gonal, or 0 if none exists, for 3 <= k <= n.at n=43A189216
• Least nonnegative number greater than the previous number which is simultaneously an n-gonal and (n+1)-gonal number.at n=10A342300
• Numbers that are both k-gonal and (k+1)-gonal for some k >= 3.at n=11A378245