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A089478 Triangle T(n,k) read by rows, where T(n,k) = number of times the determinant of a real n X n (0,1)-matrix takes the value k, for n >= 1, 0 <= k <= A003432(n). 1
1, 1, 10, 3, 338, 84, 3, 42976, 10020, 1200, 60, 21040112, 4851360, 1213920, 144720, 43560, 3600, 39882864736, 9240051240, 3868663680, 768723480, 418703040, 63612360, 46569600, 6438600, 5014800, 529200, 292604283435872 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The first 4 rows were provided by Wouter Meeussen.

LINKS

Table of n, a(n) for n=1..28.

EXAMPLE

a(4)=T(2,1)=3 because there are 3 different (0,1)-matrices with det=1:

((1,0),(0,1)), ((1,1),(0,1)), ((1,0),(1,1))

PROG

See link in A086264.

CROSSREFS

Cf. T(n, 0)=A046747(n), T(n, 1)=A086264(n), T(n, A003432(n))=A051752(n). The n-th row of the table contains A089472(n) nonzero entries.

Sequence in context: A165790 A077194 A038305 * A028967 A097530 A063565

Adjacent sequences:  A089475 A089476 A089477 * A089479 A089480 A089481

KEYWORD

hard,nonn,tabf

AUTHOR

Hugo Pfoertner, Nov 04 2003

STATUS

approved

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Last modified August 7 19:57 EDT 2020. Contains 336279 sequences. (Running on oeis4.)