66305

Appears in sequences

• Numbers that are the sum of 5 nonzero 8th powers.at n=24A003383
• a(n) = 5th Fibonacci polynomial evaluated at 2^n.at n=4A020531
• Numbers k such that k^2 is palindromic in base 16.at n=28A029733
• Denominators of continued fraction convergents to sqrt(65).at n=4A041113
• Denominators of continued fraction convergents to sqrt(260).at n=4A041487
• Denominators of continued fraction convergents to sqrt(585).at n=8A042121
• a(n) = n^4 + 3*n^2 + 1.at n=16A057721
• Numbers generated by the Fibonacci polynomial x^4 + 3x^2 + 1.at n=15A085151
• Pell equation solutions (8*b(n))^2 - 65*a(n)^2 = -1 with b(n) = A097735(n), n >= 0.at n=2A097736
• 3-almost prime octagonal numbers.at n=32A129927
• Determinant of n X n matrix with rows (n^2,-1,0,...,0), (1,n^2,-1, 0,...,0), (0,1,n^2,-1,0,...,0), ...,(0,0,...,1,n^2).at n=3A176233
• Octagonal numbers with prime indices.at n=34A267144
• Numbers k such that A163511(k) is a seventh power.at n=19A366287
• Octagonal numbers that are the product of three distinct primes.at n=27A382231