33278domain: NAppears in sequences"CFJ" (necklace, size, labeled) transform of 2,2,2,2...at n=9A0321341/4 the number of (n+1) X (n+1) binary arrays with all 2 X 2 subblock sums the same.at n=14A183977Numbers k for which rank of the elliptic curve y^2=x^3+k*x is 4.at n=34A309031