41842domain: NAppears in sequencesNumbers k such that (3^k - 7)/2 is prime.at n=18A063679Indices of 1's in A096535.at n=8A132678Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001.at n=10A260537