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 A178067 Triangle read by rows, A000027 * A000012 1
 1, 5, 3, 15, 11, 6, 34, 27, 19, 10, 65, 54, 42, 29, 15, 111, 95, 78, 60, 41, 21, 175, 153, 130, 106, 81, 55, 28, 260, 231, 201, 170, 138, 105, 71, 36 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A132117: (1, 8, 32, 90, 205, 406,...). The operation takes partial sums of the A000027 triangle rows, from the right. Left border = A006003 LINKS FORMULA As infinite lower triangular matrices, A000027 * A000012 (the all 1's triangle). EXAMPLE First few rows of the triangle = 1; 5, 3; 15, 11, 6; 34, 27, 19, 10; 65, 54, 42, 29, 15; 111, 95, 78, 60, 41, 21; 175, 153, 130, 106, 81, 55, 28; 260, 231, 201, 170, 138, 105, 71, 36; 369, 332, 294, 255, 215, 174, 132, 89, 45; 505, 459, 412, 364, 315, 265, 214, 162, 109, 55; 671, 615, 558, 500, 441, 381, 320, 258, 195, 131, 66; ... Example: Row 3 = (15, 11 6) since row 3 of triangle A000027 = (4, 5, 6); then taking partial sums from the right. CROSSREFS Cf. A000027, A132117 Sequence in context: A166465 A146934 A213762 * A213548 A246204 A185733 Adjacent sequences:  A178064 A178065 A178066 * A178068 A178069 A178070 KEYWORD nonn,tabl,easy AUTHOR Gary W. Adamson, May 18 2010 STATUS approved

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Last modified May 23 13:25 EDT 2019. Contains 323514 sequences. (Running on oeis4.)