A001575 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A001575

Colored series-parallel networks.
(Formerly M4567 N1944)

0, 0, 8, 102, 948, 7900, 62928, 491832

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

REFERENCES

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

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..8.

CROSSREFS

Sequence in context: A318551 A307461 A318213 * A366016 A328061 A305603

Adjacent sequences: A001572 A001573 A001574 * A001576 A001577 A001578

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane

STATUS

approved

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.