A075532 Number of rooted trees where each node at height h has 0 or h+1 children.

1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 2, 2, 1, 1, 3, 2, 2, 3, 4, 4, 5, 6, 5, 7, 9, 10, 11, 11, 16, 21, 19, 19, 28, 32, 38, 38, 46, 53, 68, 77, 82, 95, 112, 134, 157, 172, 198, 232, 270, 312, 363, 411, 471, 548, 642, 733, 850, 964, 1120, 1300, 1502, 1707, 1982

Offset

1,18

Links

Table of n, a(n) for n=1..70.

Index entries for sequences related to rooted trees

Crossrefs

Cf. A075533, A075534.

Sequence in context: A343068 A370489 A057555 * A050176 A047130 A125778

Adjacent sequences: A075529 A075530 A075531 * A075533 A075534 A075535

Keyword

nonn

Author

Christian G. Bower, Sep 19 2002. Suggested by David W. Wilson.

Status

approved