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 A176505 Triangle T(n,m) read by rows: T(n,m) = a(n) - a(m) - a(n-m) + 1, where a(n) = A000931(n+4). 1
 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 3, 2, 3, 2, 1, 1, 1, 2, 3, 4, 4, 4, 4, 3, 2, 1, 1, 2, 4, 5, 5, 6, 5, 5, 4, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,25 LINKS Indranil Ghosh, Rows 0..120, flattened Indranil Ghosh, Python Program to generate the b-file FORMULA T(n,m) = a(n) - a(m) - a(n-m) + 1, a(n) = A000931(n+4). EXAMPLE Triangle: {1}, {1, 1}, {1, 0, 1}, {1, 0, 0, 1}, {1, 1, 1, 1, 1}, {1, 0, 1, 1, 0, 1}, {1, 1, 1, 2, 1, 1, 1}, {1, 1, 2, 2, 2, 2, 1, 1}, {1, 1, 2, 3, 2, 3, 2, 1, 1}, {1, 2, 3, 4, 4, 4, 4, 3, 2, 1}, {1, 2, 4, 5, 5, 6, 5, 5, 4, 2, 1}, ... T(6,3) = a(6) - a(3) - a(6-3) + 1 = a(6) - 2 * a(3) + 1 = 3 - (2 * 1) + 1 = 2. - Indranil Ghosh, Feb 17 2017 MATHEMATICA a[0] := 0; a[1] := 1; a[2] := 1; a[n_] := a[n] = a[n - 2] + a[n - 3]; t[n_, m_] := t[n, m] = a[n] - a[m] - a[n - m] + 1; Table[Table[t[n, m], {m, 0, n}], {n, 0, 10}]; Flatten[%] CROSSREFS Cf. A000931. Sequence in context: A080356 A184167 A036541 * A338521 A036225 A236859 Adjacent sequences:  A176502 A176503 A176504 * A176506 A176507 A176508 KEYWORD nonn,tabl,easy,less AUTHOR Roger L. Bagula, Apr 19 2010 EXTENSIONS Name and formula sections corrected by Indranil Ghosh, Feb 17 2017 STATUS approved

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Last modified December 6 01:25 EST 2021. Contains 349558 sequences. (Running on oeis4.)