22670

Appears in sequences

• Integers n such that 9*10^n + 11 is a prime number.at n=21A111023
• a(n) = ceiling(A117791(n)/2).at n=27A173696
• Number of days after Jan 01 1000 such that the date written in the format DDMMYYYY is palindromic.at n=21A210885
• Numbers that cannot be expressed as the sum of one or more numbers without any repeated digits.at n=22A342080
• a(n) = Sum_{k=0..n} (n - k)! * (n - 1)^k. Row sums of A350269.at n=6A350268