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 A211364 Inversion sets of finite permutations that have only 0s and 1s in their inversion vectors. 2
 0, 1, 4, 3, 32, 33, 20, 11, 512, 513, 516, 515, 288, 289, 148, 75, 16384, 16385, 16388, 16387, 16416, 16417, 16404, 16395, 8704, 8705, 8708, 8707, 4384, 4385, 2196, 1099, 1048576, 1048577, 1048580, 1048579, 1048608, 1048609, 1048596 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS The finite permutations whose position in reverse colexicographic order is A059590(n) (compare A055089, A195663) have the special feature that their inversion vectors (compare A007623) have only zeros and ones, and give 2*n when interpreted as binary numbers. As the inversion vectors are special, one may also take a look at the inversion sets. This sequence shows them, interpreted as binary numbers (compare A211362). LINKS Tilman Piesk, Table of n, a(n) for n = 0..127 FORMULA a(n) =  A211362(A059590(n)) EXAMPLE These are the 8 permutations of 4 elements that have only 0s and 1s in their inversion vectors. The left column shows their numbers (compare A055089, A195663), i.e. the beginning of A059590. The right column shows the inversion sets interpreted as binary numbers, i.e. the beginning of this sequence. No.  permutation  inv. vector  inversion set     a 00     1 2 3 4     0 0 0 0     0  0 0  0 0 0     0 01     2 1 3 4     0 1 0 0     1  0 0  0 0 0     1 02     1 3 2 4     0 0 1 0     0  0 1  0 0 0     4 03     3 1 2 4     0 1 1 0     1  1 0  0 0 0     3 06     1 2 4 3     0 0 0 1     0  0 0  0 0 1    32 07     2 1 4 3     0 1 0 1     1  0 0  0 0 1    33 08     1 4 2 3     0 0 1 1     0  0 1  0 1 0    20 09     4 1 2 3     0 1 1 1     1  1 0  1 0 0    11 CROSSREFS Cf. A211362, A059590. Sequence in context: A286795 A127138 A064081 * A099438 A002178 A013558 Adjacent sequences:  A211361 A211362 A211363 * A211365 A211366 A211367 KEYWORD nonn AUTHOR Tilman Piesk, Jun 03 2012 STATUS approved

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Last modified December 12 15:11 EST 2019. Contains 329960 sequences. (Running on oeis4.)