23317

Appears in sequences

• Composite numbers, not ending with 0, sharing a 3-digit sequence with some of its prime factors.at n=26A131523
• Augmentation of the triangle A011973. See Comments.at n=39A193607
• Minimal natural number (in decimal representation) with n prime substrings in base-5 representation (substrings with leading zeros are considered to be nonprime).at n=15A217305
• Number of (1+2) X (n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=21A252720
• Numbers with two or more distinct prime factors such that the number and all its prime factors fall on a single straight line when they are plotted on a square spiral.at n=41A346294
• Numbers whose square and cube taken together contain each decimal digit at least twice.at n=6A363909