221137

Appears in sequences

• Lucky numbers N (A000959) such that Fibonacci iterations starting with (1, N) lead to a "nine digits anagram".at n=22A034589
• a(n) = n^5 - (n-1)^5 + (n-2)^5 - ... +(-1)^n*0^5.at n=13A062393
• a(n) = 3*n^4 + 6*n^3 - 3*n + 1.at n=16A181475
• The number of tilings of a 5 X (4n) floor with 1 X 4 tetrominoes.at n=8A236579