I discussed earlier a pattern of Mrs saumya at http://ikolam.com/node/19870 . This did not seem to have been read much by the viewers. In it I mentioned that it is possible to generalise this pattern. Here is one such pattern where a 3x4 sOnA and a 4x3 sOnA are joined and this combined unit is formed as a square with two lines. In the centre is another generalised pattern of the same 3x4 sOnA motif. This has only one line. Enjoy!
Regards! - mOhana