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A179112 T(n,k)=Number of nXk 0..2 arrays with each sum of a(1..i,1..j) no greater than i*j and rows and columns in nondecreasing lexicographic order 1
2, 4, 4, 6, 18, 6, 9, 64, 64, 9, 12, 193, 629, 193, 12, 16, 501, 5191, 5191, 501, 16, 20, 1180, 35084, 127771, 35084, 1180, 20, 25, 2529, 201142, 2563468, 2563468, 201142, 2529, 25, 30, 5080, 1001345, 42356325, 157360559, 42356325, 1001345, 5080, 30, 36 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

..2.....4........6...........9.............12..............16..............20

..4....18.......64.........193............501............1180............2529

..6....64......629........5191..........35084..........201142.........1001345

..9...193.....5191......127771........2563468........42356325.......590679221

.12...501....35084.....2563468......157360559......7926791154....333098446431

.16..1180...201142....42356325.....7926791154...1231063084249.158993797153025

.20..2529..1001345...590679221...333098446431.158993797153025

.25..5080..4446018..7140764807.11973522235788

.30..9593.17889927.76331242612

.36.17298.66227888

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

CROSSREFS

Column 1 is A002620(n+2)

Sequence in context: A002086 A039830 A159788 * A096612 A218707 A177153

Adjacent sequences:  A179109 A179110 A179111 * A179113 A179114 A179115

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 04 2011

STATUS

approved

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Last modified March 27 06:50 EDT 2017. Contains 284144 sequences.