83393domain: NAppears in sequencesa(n) is the smallest nonnegative integer such that a(n)! contains a string of exactly n consecutive 4's.at n=10A254449Expansion of e.g.f. sinh( (exp(4*x) - 1)/4 ).at n=7A357617Numbers that are the sum of a positive square and a positive fifth power in more than one way.at n=39A363715