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A139134
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a(n) = n-th derivative of Sec(Exp(z)-1) at z=0.
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0
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1, 0, 1, 3, 12, 65, 417, 3094, 26243, 250371, 2652754, 30910935, 392895789, 5409783392, 80214503397, 1274329677391, 21594115259540, 388790596531173, 7411710847692157, 149142571391245758, 3159081458947418511
(list; graph; refs; listen; history; internal format)
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