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A002631 Number of circuits of nullity n.
(Formerly M1502 N0590)
2
1, 2, 5, 16, 67, 435 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

R. M. Foster, Geometrical circuits of electrical networks, Transactions of the American Institute of Electrical Engineers, 51 (1932), 309-317.

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).

CROSSREFS

Cf. A002632.

Sequence in context: A005163 A006116 A122082 * A107948 A058673 A059295

Adjacent sequences:  A002628 A002629 A002630 * A002632 A002633 A002634

KEYWORD

nonn,more,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 17:11 EST 2012. Contains 205938 sequences.