31448

Appears in sequences

• Numbers whose set of base-13 digits is {1,4}.at n=34A032825
• Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.at n=5A146092
• Number of enhanced partial matchings of n elements treatable by "PTR" (Procedure Triple Reverse).at n=12A220872
• Numbers that are equal to the sum of the number of divisors of their first k arithmetic derivatives, for some k.at n=37A269459