A303354 Expansion of Product_{k>0} (1+k^2*x^k)^(-1/k).
1, -1, -1, -2, 4, -3, 3, -6, 75, -152, -4, -21, 1136, -1118, -1348, -5846, 20189, -11851, 17440, -49133, 119449, -448210, 72614, 35800, 6048178, -6376555, -5239650, -25634644, 52463464, -20483411, 155646867, -229344925, 664833536, -2469711562, 819287282
Offset: 0
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Programs
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Maple
seq(coeff(series(mul((1+k^2*x^k)^(-1/k), k = 1..n), x, n+1), x, n), n = 0..40); # Muniru A Asiru, Apr 22 2018
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