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A114358 Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-6). 0
1, 322, 1186, 2110, 3034, 3958, 4882, 5806, 6730, 7654, 8578, 9502, 10426, 11350, 12274, 13198, 14122, 15046, 15970, 16894, 17818, 18742, 19666, 20590, 21514, 22438, 23362, 24286, 25210, 26134, 27058, 27982, 28906, 29830, 30754, 31678 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

More generally for any n>=floor((m+1)/2) the trace of M(n)^(-m) = binomial(2*m,m)*n-2^(2*m-1)+binomial(2*m-1,m)

FORMULA

a(1)=1 a(2)=322 then a(n)=924n-1586

CROSSREFS

Sequence in context: A054034 A004947 A004967 * A158305 A033524 A082947

Adjacent sequences:  A114355 A114356 A114357 * A114359 A114360 A114361

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 09 2006

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Last modified February 16 12:15 EST 2012. Contains 205909 sequences.