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 A114283 Sequence array for binomial transform of Jacobsthal numbers A001045(n+1). 3
 1, 2, 1, 6, 2, 1, 18, 6, 2, 1, 54, 18, 6, 2, 1, 162, 54, 18, 6, 2, 1, 486, 162, 54, 18, 6, 2, 1, 1458, 486, 162, 54, 18, 6, 2, 1, 4374, 1458, 486, 162, 54, 18, 6, 2, 1, 13122, 4374, 1458, 486, 162, 54, 18, 6, 2, 1, 39366, 13122, 4374, 1458, 486, 162, 54, 18, 6, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Sequence array for A025192. Row sums are 3^n, A000244. Diagonal sums are A015518(n+1). Inverse is A114284. LINKS Reinhard Zumkeller, Rows n = 0..120 of triangle, flattened FORMULA Riordan array ((1-x)/(1-3x), x). EXAMPLE Triangle begins 1; 2,1; 6,2,1; 18,6,2,1; 54,18,6,2,1; 162,54,18,6,2,1; PROG (Haskell) a114283 n k = a114283_tabl !! n !! k a114283_row n = a114283_tabl !! n a114283_tabl = iterate    (\row -> (sum \$ zipWith (+) row \$ reverse row) : row) [1] -- Reinhard Zumkeller, Nov 27 2012 CROSSREFS Sequence in context: A103881 A101024 A124730 * A106187 A110135 A114423 Adjacent sequences:  A114280 A114281 A114282 * A114284 A114285 A114286 KEYWORD easy,nonn,tabl AUTHOR Paul Barry, Nov 20 2005 STATUS approved

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