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 A143966 Eigentriangle with row sums = A001333 starting (1, 3, 7, 17, 41, 99, ...). 1
 1, 2, 1, 2, 2, 3, 2, 2, 6, 7, 2, 2, 6, 14, 17, 2, 2, 6, 14, 34, 41, 2, 2, 6, 14, 34, 82, 99, 2, 2, 6, 14, 34, 82, 198, 239, 2, 2, 6, 14, 34, 82, 198, 478, 577 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Right border = A001333. Row sums = shifted A001333: (1, 3, 7, 17, 41, 99, ...) = INVERT transform of (1, 2, 2, 2, ...). Sum of n-th row terms = rightmost term of next row. LINKS Table of n, a(n) for n=0..44. FORMULA n-th row of the triangle = n terms of twice A001333: (1, 1, 3, 7, 17, 41, 99, ...) followed by A001333(n). EXAMPLE First few rows of the triangle: 1; 2, 1; 2, 2, 3; 2, 2, 6, 7; 2, 2, 6, 14, 17; 2, 2, 6, 14, 34, 41; 2, 2, 6, 14, 34, 82, 99; 2, 2, 6, 14, 34, 82, 198, 239; ... CROSSREFS Cf. A001333. Sequence in context: A365576 A290983 A272887 * A260617 A178695 A185315 Adjacent sequences: A143963 A143964 A143965 * A143967 A143968 A143969 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 06 2008 STATUS approved

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Last modified September 15 12:32 EDT 2024. Contains 375938 sequences. (Running on oeis4.)