225138

Appears in sequences

• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k levels. A level in a bargraph is a maximal sequence of two or more adjacent horizontal steps; it is preceded and followed by either an up step or a down step.at n=49A273344
• Number of integer compositions of n whose leaders of anti-runs are strictly decreasing.at n=22A374680
• Numbers that can be written in exactly three different ways as s_1^x_1 + ... + s_t^x_t, with 1 < s_1 < ... < s_t and {s_1,..., s_t} = {x_1,..., x_t} for some t > 0.at n=26A386967
• Numbers that can be written in exactly two different ways in the form described by A387302.at n=36A387898