1;
1, 1;
1, 4, 1;
1, 11, 11, 1;
1, 26, 64, 26, 1;
1, 57, 300, 300, 57, 1;
1, 120, 1287, 2770, 1287, 120, 1;
1, 247, 5313, 23587, 23587, 5313, 247, 1;
1, 502, 21562, 194254, 401504, 194254, 21562, 502, 1;
1, 1013, 86834, 1575986, 6619368, 6619368, 1575986, 86834, 1013, 1;
1, 2036, 348457, 12695310, 107487764, 218443050, 107487764, 12695310, 348457, 2036, 1;