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A078485 Number of irreducible indecomposable permutations of degree n. +0
2
0, 1, 1, 1, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535, 131071, 262143, 524287, 1048575, 2097151, 4194303, 8388607, 16777215, 33554431, 67108863, 134217727, 268435455, 536870911, 1073741823, 2147483647, 4294967295, 8589934591 (list; graph; listen)
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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