72559411

Appears in sequences

• a(n) = (6^n - 1)/5.at n=11A003464
• Cyclotomic polynomials at x=6.at n=11A019324
• Cyclotomic polynomials at x=-6.at n=22A020505
• Gaussian binomial coefficients [ n,10 ] for q = 6.at n=1A022228
• a(n) = Sum_{j=0..10} n^j.at n=6A060885
• 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=10A064082
• Numbers of the form (6^{mr}-1)/(6^r-1) for positive integers m, r.at n=27A076285
• a(n) = p(1,n), where p(x,n) is the strong divisibility sequence of polynomials based on sqrt(3/2) as in A328644.at n=10A329018
• a(n) = floor(A026532(n)/5).at n=22A329114
• a(n) = floor(A026549(n)/5).at n=22A329115