55545

Appears in sequences

• Numbers having four 5's in base 10.at n=19A043512
• Number of 5-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero.at n=14A208826
• Number of ways to select 4 numbers from the set of the first n natural numbers avoiding 3-term arithmetic progressions.at n=33A300760
• a(n) is the smallest number which can be represented as the sum of n distinct centered n-gonal numbers in exactly n ways, or -1 if no such number exists.at n=20A352975
• Moving the rightmost digit of a number to place it furthest to the left adds 9 to the number.at n=30A363820