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A230860 Triangle read by rows: coefficients of generating functions U_{132456,n}(y). 0
-1, -1, 1, -1, 2, -1, -1, 3, -3, 1, -1, 4, -6, 4, -1, -1, 6, -10, 10, -5, 1, -1, 8, -17, 20, -15, 6, -1, -1, 10, -27, 38, -35, 21, -7, 1, -1, 12, -40, 68, -74, 56, -28, 8, -1, -1, 14, -57, 114, -146, 131, -84, 36, -9, 1, -1, 16, -78, 182, -270, 282, -216, 120, -45, 10, -1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

See Jones and Remmel for precise definition.

LINKS

Table of n, a(n) for n=1..66.

Miles Eli Jones, Jeffrey B. Remmel, A reciprocity method for computing generating functions over the set of permutations with no consecutive occurrence of a permutation pattern, Discrete Math. 313 (2013), no. 23, 2712--2729. MR3106443.

EXAMPLE

Triangle begins:

-1,

-1,1,

-1,2,-1,

-1,3,-3,1,

-1,4,-6,4,-1,

-1,6,-10,10,-5,1,

-1,8,-17,20,-15,6,-1,

-1,10,-27,38,-35,21,-7,1,

-1,12,-40,68,-74,56,-28,8,-1,

-1,14,-57,114,-146,131,-84,36,-9,1,

-1,16,-78,182,-270,282,-216,120,-45,10,-1,

...

CROSSREFS

Sequence in context: A302998 A303484 A008571 * A051137 A183328 A034328

Adjacent sequences:  A230857 A230858 A230859 * A230861 A230862 A230863

KEYWORD

sign,tabl

AUTHOR

N. J. A. Sloane, Oct 31 2013

STATUS

approved

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Last modified January 26 16:03 EST 2022. Contains 350599 sequences. (Running on oeis4.)