293061domain: NAppears in sequencesNumber of primes of the form (x+1)^7 - x^7 less than 10^n.at n=40A221977Sum of seventh powers of coefficients in full expansion of (z_1+z_2+...+z_n)^n.at n=3A246242a(n) is the index of the first occurrence of n in A371091.at n=15A372559