// output of ./demo/comb/ordered-tree-lev-seq-demo.cc: // Description: //% Level sequences for ordered rooted trees. //% Cf. OEIS sequence A000108. arg 1: 5 == n [Number of non-root nodes] default=5 arg 2: 0 == aa [Whether to render trees as ASCII art] default=0 1: [ 0 1 1 1 1 1 ] 2: [ 0 1 1 1 1 2 ] 3: [ 0 1 1 1 2 1 ] 4: [ 0 1 1 1 2 2 ] 5: [ 0 1 1 1 2 3 ] 6: [ 0 1 1 2 1 1 ] 7: [ 0 1 1 2 1 2 ] 8: [ 0 1 1 2 2 1 ] 9: [ 0 1 1 2 2 2 ] 10: [ 0 1 1 2 2 3 ] 11: [ 0 1 1 2 3 1 ] 12: [ 0 1 1 2 3 2 ] 13: [ 0 1 1 2 3 3 ] 14: [ 0 1 1 2 3 4 ] 15: [ 0 1 2 1 1 1 ] 16: [ 0 1 2 1 1 2 ] 17: [ 0 1 2 1 2 1 ] 18: [ 0 1 2 1 2 2 ] 19: [ 0 1 2 1 2 3 ] 20: [ 0 1 2 2 1 1 ] 21: [ 0 1 2 2 1 2 ] 22: [ 0 1 2 2 2 1 ] 23: [ 0 1 2 2 2 2 ] 24: [ 0 1 2 2 2 3 ] 25: [ 0 1 2 2 3 1 ] 26: [ 0 1 2 2 3 2 ] 27: [ 0 1 2 2 3 3 ] 28: [ 0 1 2 2 3 4 ] 29: [ 0 1 2 3 1 1 ] 30: [ 0 1 2 3 1 2 ] 31: [ 0 1 2 3 2 1 ] 32: [ 0 1 2 3 2 2 ] 33: [ 0 1 2 3 2 3 ] 34: [ 0 1 2 3 3 1 ] 35: [ 0 1 2 3 3 2 ] 36: [ 0 1 2 3 3 3 ] 37: [ 0 1 2 3 3 4 ] 38: [ 0 1 2 3 4 1 ] 39: [ 0 1 2 3 4 2 ] 40: [ 0 1 2 3 4 3 ] 41: [ 0 1 2 3 4 4 ] 42: [ 0 1 2 3 4 5 ] ct=42