A377442 Square array read by rising antidiagonals: T(n, k) = A377441(-n, k), an extension of A377441 into the domain of negative n.
1, 1, 1, 1, 1, 2, 1, 1, 2, 5, 1, 1, 2, 4, 14, 1, 1, 2, 3, 9, 42, 1, 1, 2, 2, 6, 22, 132, 1, 1, 2, 1, 5, 12, 57, 429, 1, 1, 2, 0, 6, 6, 26, 154, 1430, 1, 1, 2, -1, 9, -2, 15, 59, 429, 4862, 1, 1, 2, -2, 14, -18, 24, 24, 138, 1223, 16796, 1, 1, 2, -3, 21, -48, 77, -23, 53, 332, 3550, 58786, 1, 1, 2, -4, 30, -98, 222, -226, 102, 107, 814, 10455, 208012, 1, 1, 2
Offset: 0
Examples
The array begins: [ 0] 1, 1, 2, 5, 14, 42, 132, 429, 1430, ... = A000108 [-1] 1, 1, 2, 4, 9, 22, 57, 154, 429, ... = A105633 [-2] 1, 1, 2, 3, 6, 12, 26, 59, 138, ... = A152172 [-3] 1, 1, 2, 2, 5, 6, 15, 24, 53, ... [-4] 1, 1, 2, 1, 6, -2, 24, -23, 102, ... [-5] 1, 1, 2, 0, 9, -18, 77, -226, 765, ... [-6] 1, 1, 2, -1, 14, -48, 222, -921, 3914, ... [-7] 1, 1, 2, -2, 21, -98, 531, -2756, 14373, ... Row index written as [m] is corresponding to A377441(m, k).
Crossrefs
Cf. A377441 (The main entry for this sequence).
Comments