56250

Appears in sequences

• Triangle of coefficients in expansion of (3+5x)^n.at n=26A013622
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*3^j.at n=22A038245
• Numbers whose product of exponents is equal to the sum of prime factors.at n=36A071175
• Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles.at n=12A084649
• a(n) = n*(n+5)*(50+45*n+n^2)/24.at n=24A101861
• McKay-Thompson series of class 32a for the Monster group.at n=46A107635
• Number of terms in A095810 which have n digits.at n=6A113023
• Numbers that are primally tight, have 2 as first prime and strictly ascending powers.at n=42A133809
• a(n) = n^5*(n+1)^2/2.at n=5A163275
• Triangular array read by rows: T(n,k) is the number of elements x in {1,2,...,n} such that |(f^-1)(x)| = k over all functions f:{1,2,...,n}->{1,2,...,n}; n>=0, 0<=k<=n.at n=23A210457
• The sum of the totatives of n is a perfect cube.at n=39A237282
• Number of nonisomorphic proper colorings of partition star graph using six colors.at n=26A297570
• a(1) = 1, and for n > 1, a(n) = A276086(n) * a(A064989(n)).at n=26A324889
• a(n) = Product_{d|n} A276086(d)^A010051(n/d).at n=49A329350
• The fifth moments of the squared binomial coefficients; a(n) = Sum_{m=0..n} m^5*binomial(n, m)^2.at n=5A329913
• a(n) = Sum_{k=0..n} binomial(n,k)^2 * k^n.at n=5A336828
• Numbers m such that the product of m and the string m in reverse contains m as a substring.at n=37A342127
• a(n) = Sum_{k=1..n} sigma(k)*sigma(2*k), where sigma(n) = A000203(n) is the sum of the divisors of n.at n=28A347108
• Integers m such that the decimal expansion of 1/m contains only odd digits other than leading or trailing zeros.at n=43A353614
• Numbers k that set records in A355432.at n=27A360589