47916

Appears in sequences

• a(n) = n^2*(n-1)^3/4.at n=12A019584
• Numbers k such that 255*2^k+1 is prime.at n=43A032504
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*11^j.at n=13A038301
• Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*9^j.at n=11A038323
• Diagonal in array of n-gonal numbers A081422.at n=35A081437
• Number of pairs with two different elements which can be obtained by selecting unique elements from two sets with n+1 and n^2 elements respectively and n common elements.at n=36A085490
• Numbers of the form (6^i)*(11^j), with i, j >= 0.at n=19A108698
• Numbers of the form p^3*q^2*r^2 where p, q, and r are distinct primes.at n=22A179695
• Floor[1/{(3+n^4)^(1/4)}], where {}=fractional part.at n=32A184538
• Numbers m such that the set of distinct prime divisors of m is equal to the set of distinct prime divisors of the arithmetic derivative m'.at n=32A201009
• Number of (n+1)X2 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=2A203927
• Number of (n+1) X 4 0..5 arrays with every 2 X 2 subblock having equal diagonal elements or equal antidiagonal elements.at n=0A203929
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=3A203934
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=5A203934
• Number of nX4 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.at n=2A267908
• T(n,k)=Number of nXk 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.at n=17A267911
• Number of 3Xn 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.at n=3A267914
• Primitive exponential abundant numbers: the powerful terms of A129575.at n=17A328136
• Exponential barely abundant numbers: exponential abundant numbers whose exponential abundancy is closer to 2 than that of any smaller exponential abundant number.at n=7A336254
• Omit zero digits from factorial numbers.at n=12A356757