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A011793 Triangle of numbers of irreducible Euler sums. +0
1
1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 1, 3, 3, 1, 2, 5, 3, 1, 1, 5, 7, 4, 1, 3, 8, 9, 4, 1, 1, 7, 14, 12, 5, 1, 3, 14, 20, 15, 5, 1, 1, 9, 25, 30, 18, 6, 1, 4, 20, 42, 40, 22, 6, 1, 1, 12, 42, 66, 55, 26, 7, 1 (list; table; graph; listen)
OFFSET

1,10

LINKS

D. J. Broadhurst, On the enumeration of irreducible k-fold Euler sums and their roles in knot theory and field theory

CROSSREFS

Adjacent sequences: A011790 A011791 A011792 this_sequence A011794 A011795 A011796

Sequence in context: A078573 A143786 A035176 this_sequence A109649 A098199 A022828

KEYWORD

nonn,tabl,nice

AUTHOR

njas, David Broadhurst (D.Broadhurst(AT)open.ac.uk)

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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