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 A218876 Triangle read by rows: T(n,k) (1 <= k <= n) = number of non-robust primitive binary sequences of length n and curling number k. 2
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 6, 2, 0, 0, 0, 0, 0, 0, 0, 0, 10, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 26, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,11 LINKS B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, arXiv:1212.6102, Dec 25 2012. B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, Journal of Integer Sequences, Vol. 16 (2013), Article 13.4.3. N. J. A. Sloane, First 36 rows of table FORMULA The triangle in A218869 is the sum of triangles A218875 and A218876. EXAMPLE Triangle begins: [0], [0, 0], [0, 0, 0], [0, 0, 0, 0], [2, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0], [4, 0, 0, 0, 0, 0, 0], [2, 2, 0, 0, 0, 0, 0, 0], [6, 0, 0, 0, 0, 0, 0, 0, 0], [6, 0, 0, 0, 0, 0, 0, 0, 0, 0], [12, 6, 2, 0, 0, 0, 0, 0, 0, 0, 0], [10, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ... CROSSREFS Cf. A216955, A218869, A218875. Sequence in context: A028706 A060175 A321537 * A028621 A226557 A067898 Adjacent sequences:  A218873 A218874 A218875 * A218877 A218878 A218879 KEYWORD nonn,tabl AUTHOR N. J. A. Sloane, Nov 15 2012 STATUS approved

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Last modified September 22 06:53 EDT 2020. Contains 337289 sequences. (Running on oeis4.)