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A091934 Number of dual isomorphisms on [ n,n* ]. +0
1
1, 3, 4, 7, 8, 10, 11, 15, 19, 24, 25, 30 (list; graph; listen)
OFFSET

1,2
LINKS

Jon Perry, Trees of height 2 (bottom of page)

CROSSREFS

Sequence in context: A046541 A047344 A005187 this_sequence A024515 A138971 A032788

Adjacent sequences: A091931 A091932 A091933 this_sequence A091935 A091936 A091937

KEYWORD

nonn,uned,obsc

AUTHOR

Jon Perry (perry(AT)globalnet.co.uk), Mar 11 2004

EXTENSIONS

I would like a better definition. - njas

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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