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 A153288 A triangular sequence designed with row sums 2*3^n with first column A064263. 0
 2, 3, 3, 2, 14, 2, 2, 25, 25, 2, 2, 36, 86, 36, 2, 2, 47, 194, 194, 47, 2, 2, 58, 302, 734, 302, 58, 2, 2, 69, 410, 1706, 1706, 410, 69, 2, 2, 80, 518, 3390, 5142, 3390, 518, 80, 2 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Row sums are: {2, 6, 18, 54, 162, 486., 1458, 4374., 13122,...}. Sequence was calculated to the 3^n level by hand. LINKS EXAMPLE {2}, {3, 3}, {2, 14, 2}, {2, 25, 25, 2}, {2, 36, 86, 36, 2}, {2, 47, 194, 194, 47, 2}, {2, 58, 302, 734, 302, 58, 2}, {2, 69, 410, 1706, 1706, 410, 69, 2}, {2, 80, 518, 3390, 5142, 3390, 518, 80, 2} MATHEMATICA (* first column : A064263*) b = {{2}, {3, 3}, {2, 14, 2}, {2, 25, 25, 2}, {2, 36, 86, 36, 2}, {2, 47, 194, 194, 47, 2}, {2, 58, 302, 734, 302, 58, 2}, {2, 69, 410, 1706, 1706, 410, 69, 2}, {2, 80, 518, 3390, 5142, 3390, 518, 80, 2}} Flatten[b] CROSSREFS Sequence in context: A153311 A153312 A153283 * A153479 A153489 A153310 Adjacent sequences:  A153285 A153286 A153287 * A153289 A153290 A153291 KEYWORD nonn,tabl AUTHOR Roger L. Bagula, Dec 23 2008 STATUS approved

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Last modified May 9 20:41 EDT 2021. Contains 343746 sequences. (Running on oeis4.)