54241

Appears in sequences

• Strong pseudoprimes to base 15.at n=11A020241
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 15.at n=16A022179
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 15.at n=19A022179
• a(n) = Sum_{d|n} sigma(n/d)*d^3.at n=33A027847
• Numbers whose set of base-15 digits is {1,4}.at n=30A032827
• Numbers whose set of base-15 digits is {1,3}.at n=30A032922
• Numbers whose set of base-15 digits is {1,2}.at n=30A032935
• Numbers whose set of base 15 digits is {0,1}.at n=31A033051
• a(n) = n^4 + n^3 + n^2 + n + 1.at n=15A053699
• Generalized repunits in base 15.at n=4A135518
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=9A207108
• a(n) = 1 + sigma(n) + sigma(n)^2 + sigma(n)^3 + sigma(n)^4.at n=7A258978
• Starting from 1, successively take the smallest "Choix de Bruxelles" with factor 13 which is not already in the sequence.at n=33A360190
• a(n) = ((n*p)^p - 1)/(n*p-1) where p = prime(n).at n=2A392068