49783

Properties

Appears in sequences

• a(1) = 1, a(n) = 2*a(n-1) + a([n/2]).at n=14A033489
• Integer part of Gauss's Arithmetic-Geometric Mean M(1,n^4).at n=25A127760
• Primes of the form a^a + b^b + c^c + d^d.at n=10A133664
• Number of n X n symmetric binary matrices with each 1 adjacent to exactly 2 king-move neighboring 1s.at n=7A191223
• Number of 4 X n 0..1 arrays with rows nondecreasing and antidiagonals unimodal.at n=17A224135
• Prime numbersat n=5111