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A174890 a(n) = det(M) where M is an n X n matrix with M[i,j] = i^j - j^i. 1

%I #9 Jan 25 2023 17:50:56

%S 1,0,1,0,196,0,65028096,0,1540115470208876544,0,

%T 861787404007697994335390269440000,0,

%U 3024149801599872168810739614376506649075557335040000,0,25610879735369429335666530857036523659955793212506655095941286757767577600000000

%N a(n) = det(M) where M is an n X n matrix with M[i,j] = i^j - j^i.

%F a(2n) = A071410(n), a(2n+1) = 0. - _Alois P. Heinz_, Jan 25 2023

%t f[n_] := Table[i^j - j^i, {i, 1, n}, {j, 1, n}]; Table[Det[f[n]], {n, 1, 15}]

%Y Cf. A071410.

%K nonn

%O 0,5

%A _José María Grau Ribas_, Apr 01 2010

%E a(0)=1 prepended by _Alois P. Heinz_, Jan 25 2023

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Last modified June 9 18:31 EDT 2024. Contains 373248 sequences. (Running on oeis4.)