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 A208245 Triangle read by rows: a(n,k) = a(n-2,k) + a(n-2,k-1). 2
 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 3, 3, 2, 1, 1, 1, 3, 4, 3, 2, 1, 1, 1, 4, 6, 5, 3, 2, 1, 1, 1, 4, 7, 7, 5, 3, 2, 1, 1, 1, 5, 10, 11, 8, 5, 3, 2, 1, 1, 1, 5, 11, 14, 12, 8, 5, 3, 2, 1, 1, 1, 6, 15, 21, 19, 13, 8, 5, 3, 2, 1, 1, 1, 6, 16, 25, 26, 20, 13, 8, 5, 3, 2, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Sum of terms in each row are given by sequence A052955. Columns (at constant k) converge toward Fibonacci starting first from high value of k). First seven rows are same as A008242. The odd numbered rows of this sequence equal the rows of A123736.  Also it has some similarities to A162741. Columns (constant k), prior to convergence to Fibonacci, appear as various other sequences (e.g. k = 4, is sequence A055803, with other columns in same referenced family). LINKS Reinhard Zumkeller, Rows n = 1..100 of triangle, flattened FORMULA a(n,k) = a(n-2,k) + a(n-2,k-1); if n=k or k=1 then a(n,k)=1; if n

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Last modified January 22 15:57 EST 2019. Contains 319364 sequences. (Running on oeis4.)