1, 0, 0, 0, 1, 1, 1, 1, 1, 6, 57, 247, 718, 1795, 4210, 9969, 27596, 98507, 402924, 1626525, 6142611, 21729644, 73308577, 241270869, 793679894, 2666563900, 9263663359, 33259282181, 122178034000, 453573262015, 1685632454779, 6240174176549, 22987207140830