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A204851 Triangle by rows relating to A005773 0

%I #5 Mar 30 2012 17:25:39

%S 1,1,1,2,2,1,5,5,2,1,13,13,6,2,1,35,35,16,7,2,1,96,96,45,19,8,2,1,267,

%T 267,126,56,22,9,2,1,750,750,357,160,68,25,10,2,1,2123,2123,1016,463,

%U 198,81,28,11,2,1,6046,6046,2907,1337,586,240,95,31,12,2,1

%N Triangle by rows relating to A005773

%C Left border = A005773. Row sums = A005773 with offset 1

%F n-th row of the triangle is the top row of M^n, deleting the zeros; where M = the infinite square production matrix:

%F 1, 1, 0, 0, 0, 0, 0,...

%F 1, 1, 1, 0, 0, 0, 0,...

%F 1, 1, 0, 1, 0, 0, 0,...

%F 1, 1, 1, 0, 1, 0, 0,...

%F 1, 1, 1, 1, 0, 1, 0,...

%F 1, 1, 1, 1, 1, 0, 1,...

%F 1, 1, 1, 1, 1, 1, 0,...

%F ...

%e First few rows of the triangle =

%e 1;

%e 1, 1;

%e 2, 2, 1;

%e 5, 5, 2, 1;

%e 13, 13, 6, 2, 1;

%e 35, 35, 16, 7, 2, 1;

%e 96, 96, 45, 19, 8, 2, 1;

%e 267, 267, 126, 56, 22, 9, 2, 1;

%e 750, 750, 357, 160, 68, 25, 10, 2, 1;

%e 2123, 2123, 1016, 463, 198, 81, 28, 11, 2, 1;

%e 6046, 6046, 2907, 1337, 586, 240, 95, 31, 12, 2, 1;

%e ...

%e Row 3 = (5, 5, 2, 1) since the top row of M^3 = [5, 5, 2, 1, 0, 0, 0,...]

%Y Cf. A005773

%K nonn,tabl

%O 0,4

%A _Gary W. Adamson_, Jan 19 2012

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Last modified September 2 10:04 EDT 2024. Contains 375613 sequences. (Running on oeis4.)