297045

Appears in sequences

• Octagonal heptagonal numbers.at n=1A048906
• Sum of all parts of all partitions of n that do not contain 1 as a part.at n=40A138880
• Sum of parts in all partitions of 2n+1 that do not contain 1 as a part.at n=20A182737
• 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=19A189216
• Least nonnegative number greater than the previous number which is simultaneously an n-gonal and (n+1)-gonal number.at n=7A342300
• Numbers that are both k-gonal and (k+1)-gonal for some k >= 3.at n=7A378245