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.

6, 9, 12, 13, 17, 18, 20, 24, 25, 26, 27, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42

Offset: 1

Author

Vladimir Shevelev, Feb 19 2011

Keywords

• nonn
• more

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

• 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.