28981

Appears in sequences

• Expansion of 1/((1-x)*(1-8*x)*(1-9*x)).at n=4A016256
• Strong pseudoprimes to base 96.at n=16A020322
• a(n) = (2*n+1)*(11*n+1).at n=36A033575
• A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to the pair of ratios 6/5 and 5/3 which generate two complementary musical harmonies, the Minor 3rd (6/5) and the Major 6th (5/3).at n=24A061919
• Molien series for 16-dimensional group of structure S_3 and order 6, corresponding to complete weight enumerators of Hermitian self-dual GF(4)-linear codes over GF(16).at n=7A092496
• Greatest multiple of the n-th prime in A098962.at n=20A099620
• a(1)=a(2)=1. a(n+1) = a(n) + a(smallest prime dividing n).at n=45A128216
• Centered 12-gonal numbers which are semiprimes, intersection of A003154 and A001358.at n=30A218172
• Denominators of the best rational approximations of log(6/5)/log(2).at n=22A328883