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Hankel transform of A331473.
1

%I #9 Jan 18 2020 07:21:58

%S 1,3,2,-50,-43,535,487,-4983,-4654,43174,40919,-357743,-342287,

%T 2875755,2769818,-22615130,-21889027,174913543,169936759,-1335320799,

%U -1301209414,10087636558,9853833647,-75551725535,-73949216543,561774270675,550790510642,-4151593378178

%N Hankel transform of A331473.

%F G.f.: (1 + 3x + 16x^2 - 8x^3 + 36x^4 - 12x^5 + x^6 - x^7)/(1 + 7x^2 + x^4)^2 (conjecture).

%Y Cf. A331473.

%K sign

%O 0,2

%A _Paul Barry_, Jan 17 2020