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 A086404 Square array of numbers T(n,k) = ((1+sqrt(3))*(k+sqrt(3))^n-(1-sqrt(3))*(k-sqrt(3))^n)/(2*sqrt(3)), read by antidiagonals. 3
 1, 1, 1, 1, 2, 3, 1, 3, 6, 3, 1, 4, 11, 16, 9, 1, 5, 18, 41, 44, 9, 1, 6, 27, 84, 153, 120, 27, 1, 7, 38, 151, 396, 571, 328, 27, 1, 8, 51, 248, 857, 1872, 2131, 896, 81, 1, 9, 66, 381, 1644, 4893, 8856, 7953, 2448, 81, 1, 10, 83, 556, 2889, 10984, 28003, 41904, 29681 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 LINKS Table of n, a(n) for n=0..63. EXAMPLE Rows begin 1, 1, 3, 3, 9, ... 1, 2, 6, 16, 44, ... 1, 3, 11, 41, 153, ... 1, 4, 18, 84, 396, ... 1, 5, 27, 151, 857, ... CROSSREFS Rows include A002605, A079935, A086405. Main diagonal is A086406. Rows are successive binomial transforms of (1, 1, 3, 3, 9, 9, ...). Cf. A086350. Sequence in context: A047973 A020501 A283878 * A192852 A152976 A153861 Adjacent sequences: A086401 A086402 A086403 * A086405 A086406 A086407 KEYWORD easy,nonn,tabl AUTHOR Paul Barry, Jul 19 2003 STATUS approved

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Last modified June 16 07:01 EDT 2024. Contains 373423 sequences. (Running on oeis4.)