32360

Appears in sequences

• Square root of n has the same nonzero digit in each of the first 4 places to the right of the decimal point.at n=12A073585
• a(n) = 81*n^2 - 2*n.at n=19A157507
• Lower Wythoff values for sequence A185615(n).at n=28A185616
• Numbers n such that n^16+1 and (n+2)^16+1 are both prime.at n=38A217991
• Numbers n such that pi(2n) divides n.at n=28A235495
• E.g.f.: exp(1)*P(x) - Q(x), where P(x) = 1/Product_{n>=1} (1 - x^n/n^2) and Q(x) = Sum_{n>=1} 1/Product_{k=1..n} (k - x^k/k).at n=5A249592
• Number of 5Xn binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.at n=13A266938
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 339", based on the 5-celled von Neumann neighborhood.at n=36A271291
• a(n) = 4*n*(n^2 - 3*n - 1)/3.at n=30A275876
• Numbers m such that sigma(m)*tau(m) is a square but sigma(m)/tau(m) is not an integer.at n=10A327831
• a(n) = Sum_{k=0..n} (k+1) * binomial(k,3*(n-k)).at n=15A392044