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A134663 Triangle read by rows in which n-th row gives the expansion coefficients of (1+x+x^4)^n. 0

%I #3 Oct 12 2012 14:39:33

%S 1,1,1,0,0,1,1,2,1,0,2,2,0,0,1,1,3,3,1,3,6,3,0,3,3,0,0,1,1,4,6,4,5,12,

%T 12,4,6,12,6,0,4,4,0,0,1,1,5,10,10,10,21,30,20,15,30,30,10,10,20,10,0,

%U 5,5,0,0,1,1,6,15,20,21,36,61,60,45,66,90,60,35,60,60,20,15,30,15,0,6,6,0

%N Triangle read by rows in which n-th row gives the expansion coefficients of (1+x+x^4)^n.

%C The n-th row has 4n+1 entries.

%H S. R. Finch, P. Sebah and Z.-Q. Bai, <a href="http://arXiv.org/abs/0802.2654">Odd Entries in Pascal's Trinomial Triangle</a> (arXiv:0802.2654)

%t CoefficientList[(1+x+x^4)^n, x]

%Y Cf. A027907, A038717.

%K nonn,tabf

%O 0,8

%A _Steven Finch_, Jan 25 2008

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