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A075532 Number of rooted trees where each node at height h has 0 or h+1 children. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,18
LINKS
CROSSREFS
Sequence in context: A343068 A370489 A057555 * A050176 A047130 A125778
KEYWORD
nonn
AUTHOR
Christian G. Bower, Sep 19 2002. Suggested by David W. Wilson.
STATUS
approved

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Last modified April 14 20:39 EDT 2024. Contains 371667 sequences. (Running on oeis4.)