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A185177 Different values of the permanent in (0,1) quadratic matrices with exactly 3 ones in each row and each column, in the increasing order. 4
6, 9, 12, 13, 17, 18, 20, 24, 25, 26, 27, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The sequence contains all different terms of A185179 in increasing order.

REFERENCES

V. I. Bolshakov, On spectrum of permanent on Lambda_n^k, Proc. of Seminar on Discrete Math. and Appl., Moscow State Univ. (1986), 65-73 (in Russian).

LINKS

Table of n, a(n) for n=1..24.

V. S. Shevelev, Some problems of the theory of enumerating the permutations with restricted position, Journal of Soviet Mathematics, 61 (4) (1992) 2272-2317 (see pp.2307-2309).

CROSSREFS

Cf. A176211, A176212, A185178, A185179.

Sequence in context: A315951 A081392 A225868 * A185179 A072546 A295670

Adjacent sequences:  A185174 A185175 A185176 * A185178 A185179 A185180

KEYWORD

nonn,more

AUTHOR

Vladimir Shevelev, Feb 19 2011

STATUS

approved

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Last modified May 23 11:05 EDT 2019. Contains 323513 sequences. (Running on oeis4.)