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A053304 Number of 7 X 7 binary matrices with n=0..49 ones up to row and column permutations. 8
1, 1, 3, 6, 16, 34, 90, 211, 515, 1229, 2960, 6893, 15753, 34450, 72235, 143477, 269186, 473945, 781713, 1203617, 1728192, 2310376, 2874232, 3325215, 3576980, 3576980, 3325215, 2874232, 2310376, 1728192, 1203617, 781713, 473945, 269186 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..49

FORMULA

a(n) = A049311(n) for n <= 7.

Sum_{n=0..49} a(n) = 33642660 = A002724(7).

PROG

(PARI) \\ See A321609 for M.

vector(50, n, M(7, 7, n-1))

CROSSREFS

Row 7 of A052371 and A321609.

Cf. A002724, A049311.

Sequence in context: A219810 A122742 A052370 * A053305 A049311 A068590

Adjacent sequences:  A053301 A053302 A053303 * A053305 A053306 A053307

KEYWORD

fini,full,nonn

AUTHOR

Vladeta Jovovic, Mar 05 2000

STATUS

approved

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Last modified June 26 20:37 EDT 2019. Contains 324380 sequences. (Running on oeis4.)