30124

Appears in sequences

• Number of horizontally convex n-ominoes in which the top row has at least 2 squares and the rightmost square in the top row is above the leftmost square in the second row.at n=11A049220
• Numbers n such that there are precisely 15 groups of orders n and n + 1.at n=13A295995
• Number of partitions of the n-th n-gonal number into n-gonal numbers.at n=13A337762