19467217

Appears in sequences

• Numbers k such that k concatenated with k-7 gives the product of two numbers which differ by 9.at n=8A116114
• Numbers k such that k concatenated with k+1 gives the product of two numbers which differ by 7.at n=8A116167
• Numbers k such that k concatenated with k+7 gives the product of two numbers which differ by 5.at n=7A116207