113123361

Appears in sequences

• Octagonal triangular numbers.at n=4A046183
• Octagonal hexagonal numbers.at n=2A046192
• Numbers that are n-gons for three or more n's, where n=3,4,5,...,16.at n=23A062712
• Numbers m such that 3*m+1 and 8*m+1 are both squares.at n=9A245031
• Triangular numbers that are the sum of 2 consecutive terms of A130518.at n=13A247247
• The area of the n-th convex honeycomb formed by spirals of incrementing strips of hexagons.at n=20A373081