213017754

Appears in sequences

• Numbers k such that k concatenated with k-6 gives the product of two numbers which differ by 7.at n=24A116119
• Numbers k such that k concatenated with itself gives the product of two numbers which differ by 5.at n=25A116158
• Numbers k such that k concatenated with k+4 gives the product of two numbers which differ by 3.at n=17A116185