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 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. 1
 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, 4, 10, 24, 58, 140, 169, 1, 2, 4, 10, 24, 58, 140, 338, 408, 1, 2, 4, 10, 24, 58, 140, 338, 816, 985 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS Row sums = A000129(n), the Pell numbers: (1, 2, 5, 12, ...). First few rows of the triangle:   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, 4, 10, 24, 58, 140, 169; LINKS CROSSREFS Cf. A000129. Sequence in context: A035364 A261734 A209308 * A294600 A247495 A230290 Adjacent sequences:  A143805 A143806 A143807 * A143809 A143810 A143811 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 01 2008 STATUS approved

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Last modified February 17 17:59 EST 2020. Contains 331999 sequences. (Running on oeis4.)