276115

Appears in sequences

• Scaled Chebyshev U-polynomials evaluated at sqrt(7)/2.at n=7A030240
• Numbers n such that n | 7^n + 6^n + 1.at n=27A057298
• Triangle, T(n, k) = (sqrt(k+1))^(n-1)*ChebyshevU(n-1, sqrt(k+1)/2), read by rows.at n=42A167925
• Odd heptagonal pyramidal numbers.at n=17A218324