2064384

Appears in sequences

• Denominators of coefficients of log(1+x)/sqrt(1+x).at n=8A002550
• a(n) = 4^(n-4)*(n-1)*(n-2)*(n-3).at n=6A006044
• Denominators of coefficients in function a(x) such that a(a(x)) = log(1+x).at n=7A048608
• 4*Denominator of S(n)/Pi^n, where S(n) = Sum_{k=-inf..+inf} ((4k+1)^(-n)).at n=8A050971
• a(n) = 8^(n-1)*(2^n - 1).at n=5A060195
• Products of exactly 18 primes (generalization of semiprimes).at n=14A069279
• Stirling2 triangle with scaled diagonals (powers of 8).at n=22A075503
• Product of product of divisors of n and sum of divisors of n.at n=31A076722
• Expansion of 1/(1 - 2*x + 2*x^2 - 2*x^3).at n=34A077943
• Expansion of 1/(1+2*x+2*x^2+2*x^3).at n=34A077993
• Number of Pythagorean triples mod 2^n; i.e., number of solutions to x^2 + y^2 = z^2 mod 2^n.at n=10A091143
• Denominators of the coefficients of a power series for the canonical half-exponential function.at n=19A091737
• a(n) = the least number which is the average of two consecutive primes and has exactly n prime factors (counted with multiplicity).at n=16A092576
• Maximum number of odd 2 X 2 submatrices over all 2n X 2n (0,1) matrices.at n=31A093699
• Triangle, read by rows, where T(0,0) = 1, T(n,k) = 2^n*T(n-1,k) + T(n-1,k-1).at n=22A108084
• Number of normalized polynomials of degree n in GF(2)[x,y].at n=5A122743
• An analog of Pascal's triangle based on A092287. T(n,k) = A092287(n)/(A092287(n-k)*A092287(k)), 0 <= k <= n.at n=39A129453
• An analog of Pascal's triangle based on A092287. T(n,k) = A092287(n)/(A092287(n-k)*A092287(k)), 0 <= k <= n.at n=41A129453
• Integer values of k!!/S(k), where S(k) is the sum of all odd numbers less than or equal to k, if k is odd, or the sum of all even numbers less than or equal to k, if k is even.at n=7A130318
• Records in (A063375: Number of divisors of Fibonacci(n)).at n=19A154906