3221225469

Appears in sequences

• Numbers whose binary representation is a palindrome formed from the reflected decimal expansion of the concatenation of 1, 0 and infinite digits 1.at n=31A147758
• Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^31 = I.at n=31A169352
• Expansion of 1 / ((1-x)^3 - x^3)^2.at n=26A392584