40415domain: NAppears in sequencesa(0)=0, a(1)=1, a(n) = a(n-1) + 3^(n-3)*a(n-2).at n=8A165902Smallest sequence which lists the position of digits "3" in the sequence.at n=40A167453Number of reversed integer partitions of 2n whose half-alternating sum is 0.at n=28A357639