36621093domain: NAppears in sequencesa(n) = Sum_{j=0..i, i=0..n} T(i,j), where T is the array in A026374.at n=21A026384Numbers whose base-5 representation is 333333.......3.at n=11A125833Shortest partition of n with maximal product, sorted descending & considered as a base-5 number.at n=33A178683