77720domain: NAppears in sequencesTriangle T, read by rows, where column k of T = column 0 of T^(k+1) for k>0, with column 0 of T = column 0 of T^4 shift right.at n=49A138271a(n) = Sum_{k=1..n} floor(n/(2*k-1))^3.at n=41A350144a(n) is the number of binary strings of length n whose shortest run of 1s is of length 3.at n=25A384155