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Search: id:A001575
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A001575 Colored series-parallel networks.
(Formerly M4567 N1944) 		+0
1
0, 0, 8, 102, 948, 7900, 62928, 491832 (list; graph; listen)
OFFSET

1,3
REFERENCES

J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 159.

CROSSREFS

Adjacent sequences: A001572 A001573 A001574 this_sequence A001576 A001577 A001578

Sequence in context: A050919 A083227 A060570 this_sequence A090237 A138430 A109774

KEYWORD

nonn

AUTHOR

njas

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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