47677

Appears in sequences

• Scaled Chebyshev U-polynomials evaluated at sqrt(7)/2.at n=6A030240
• Smallest number m such that m and the product of digits of m are both divisible by 7n, or 0 if no such number exists.at n=48A073908
• Numbers that cannot be expressed as a sum of 2 triangular numbers and a power of 2.at n=8A112665
• Triangle, T(n, k) = (sqrt(k+1))^(n-1)*ChebyshevU(n-1, sqrt(k+1)/2), read by rows.at n=34A167925
• Number of penholodigital squares (containing each nonzero digit exactly once) in base n.at n=17A370950
• Odd composite numbers k such that Sum_{i=1..k-1} 2^i * i^(k-2) == Sum_{i=1..(k-1)/2} i^(k-2) (mod k).at n=26A373734
• Body-centered cubic pyritohedral numbers: a(n) = 1728*n^3 - 5076*n^2 + 4984*n - 1635.at n=3A391166