700038domain: NAppears in sequencesDecimal part of n-th root of a(n) starts with digit 4.at n=38A034081Number of nondecreasing -n..n vectors of length 4 whose dot product with some nonincreasing -n..n vector equals 4.at n=30A226401Expansion of Product_{k>=1} ((1 + x^k)/(1 - x^k))^(2^(k-1)).at n=14A304962