55987

Properties

Appears in sequences

• a(n) = (6^n - 1)/5.at n=7A003464
• Cyclotomic polynomials at x=6.at n=7A019324
• Cyclotomic polynomials at x=-6.at n=14A020505
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 6.at n=29A022170
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 6.at n=34A022170
• Gaussian binomial coefficients [ n,6 ] for q = 6.at n=1A022224
• Primes that are palindromic in base 6.at n=38A029974
• a(n) = Sum_{k=0..n} n^k.at n=6A031973
• Numerators of continued fraction convergents to sqrt(468).at n=10A041892
• Numerators of continued fraction convergents to sqrt(832).at n=8A042606
• Numbers that are repdigits in base 6.at n=31A048331
• a(n) = 1111111 in base n.at n=5A053716
• Number of n-celled rotationally symmetric polyominoes without holes.at n=20A056883
• Zsigmondy numbers for a = 6, b = 1: Zs(n, 6, 1) is the greatest divisor of 6^n - 1^n (A024062) that is relatively prime to 6^m - 1^m for all positive integers m < n.at n=6A064082
• Value of n-th cyclotomic polynomial at phi(n).at n=6A070524
• Right diagonal of triangle in A072467.at n=30A072469
• Numbers of the form (6^{mr}-1)/(6^r-1) for positive integers m, r.at n=14A076285
• Primes which can be expressed as sum of distinct powers of 6.at n=11A077720
• Where records occur in A079366.at n=11A079368
• Primes of the form n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=4A088550