45000

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*6^j.at n=17A038248
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*5^j.at n=18A038259
• Numbers k such that the number of divisors of k and sum of 4th powers of divisors of k are relatively prime.at n=27A046681
• Card-matching numbers (Dinner-Diner matching numbers).at n=26A059062
• Card-matching numbers (Dinner-Diner matching numbers).at n=43A059066
• Number of rods required to make a 3-D cube of side length n.at n=24A059986
• For n>3: a(n) is a multiple of three distinct earlier terms.at n=21A060301
• Numbers whose square has more than 2/3 of its digits the same.at n=27A060813
• Non-perfect powers k for which q = A051903(k)/A051904(k) is an integer, A051904(k) > 1.at n=7A093770
• a(n) equals the (n*(n+1)/2)-th partial sum of the self-convolution 4th power of A010054, which has the g.f.: Sum_{k>=0} x^(k*(k+1)/2).at n=19A109415
• Triangle of coefficients (read in increasing degree) of the polynomials whose roots are weights in Legendre-Gauss quadrature.at n=11A112734
• Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.at n=21A120361
• Negative value of coefficient of x^(n-3) in the characteristic polynomial of a certain n X n integer circulant matrix.at n=7A127408
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 4 and 5.at n=48A136882
• Numbers k such that k and k^2 use only the digits 0, 2, 4 and 5.at n=29A136897
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 7.at n=42A136899
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 8.at n=53A136900
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 9.at n=47A136901
• Number of n-digit even numbers.at n=4A137233
• Number of permutations of 9 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.at n=3A159740