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%I A143808 #10 May 04 2024 14:29:55
%S A143808 1,1,1,1,2,2,1,2,4,5,1,2,4,10,12,1,2,4,10,24,29,1,2,4,10,24,58,70,1,2,
%T A143808 4,10,24,58,140,169,1,2,4,10,24,58,140,338,408,1,2,4,10,24,58,140,338,
%U A143808 816,985
%N A143808 Triangle read by rows, first n terms of the sequence (1, 2, 4, 10, ...) followed by P(n), where (2, 4, 10, 12, ...) = twice Pell numbers.
%C A143808 Row sums = A000129(n), the Pell numbers: (1, 2, 5, 12, ...).
%e A143808 First few rows of the triangle:
%e A143808   1;
%e A143808   1, 1;
%e A143808   1, 2, 2;
%e A143808   1, 2, 4, 5;
%e A143808   1, 2, 4, 10, 12;
%e A143808   1, 2, 4, 10, 24, 29;
%e A143808   1, 2, 4, 10, 24, 58, 70;
%e A143808   1, 2, 4, 10, 24, 58, 140, 169;
%Y A143808 Cf. A000129.
%K A143808 nonn,tabl
%O A143808 0,5
%A A143808 _Gary W. Adamson_, Sep 01 2008

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