29069

Appears in sequences

• Numbers k such that k^2 is palindromic in base 13.at n=27A029998
• Denominators of continued fraction convergents to sqrt(173).at n=8A041319
• Denominators of continued fraction convergents to sqrt(692).at n=12A042331
• a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = 2^(p+1) + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 1.at n=17A049917
• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15.at n=27A051980
• a(n) = n^4 + 3*n^2 + 1.at n=13A057721
• Numbers generated by the Fibonacci polynomial x^4 + 3x^2 + 1.at n=12A085151
• First differences of Chebyshev polynomials S(n,171) = A097844(n) with Diophantine property.at n=2A098244
• 13-Fibonacci sequence.at n=5A140455
• a(n) = a(n-2) + a(n-3) + a(n-4) - a(n-6), with a(0) = a(2) = a(3) = 1, a(1) = 0 and a(4) = a(5) = 2.at n=33A143438
• Shiraishi numbers: a parametrized family of solutions c to the Diophantine equation a^3 + b^3 + c^3 = d^3 with d = c+1.at n=28A226903
• Numbers m such that Stern polynomial B(m,x) has no irreducible polynomial factors that themselves are Stern polynomials. The initial a(1) = 1 is included by convention.at n=39A389918