66834

Appears in sequences

• Column 7 of triangle A055907.at n=7A055913
• G.f.: x^3*(2*x-1) / ((1-x)*(1-x-x^2)*(1-2*x^2)).at n=25A174959
• Total number of positive integers below 10^n requiring 15 positive biquadrates in their representation as sum of biquadrates.at n=5A186675
• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant >n.at n=19A211060
• Numbers n such that the decimal expansions of both n and n^2 have 3 as the digit with the smallest value and 8 as the digit with the largest value.at n=1A257498