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 A167413 Irregular array with the first differences of row A167384(n,.) in row n. 1
 2, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS The left column has 2 two's, 4 three's, 6 four's,... ,2*k-2 k's. Entries in the remaining columns are all 1. If one looks at the flattened sequence (2), (2), (1,3), (1,3), (1,3),.. in blocks of 1, 1, 2, 2, 2,.. , A000194(k) terms, the sum of entries in the subsequence in block number k is A001670(k). LINKS EXAMPLE 2; 2, 1; 3, 1; 3, 1; 3, 1; 3, 1, 1; 4, 1, 1; 4, 1, 1; 4, 1, 1; 4, 1, 1; 4, 1, 1; 4, 1, 1, 1; 5, 1, 1, 1; 5, 1, 1, 1; 5, 1, 1, 1; 5, 1, 1, 1; 5,... CROSSREFS Cf. A167381. Sequence in context: A297626 A206441 A175245 * A259176 A237591 A277730 Adjacent sequences:  A167410 A167411 A167412 * A167414 A167415 A167416 KEYWORD nonn,tabf AUTHOR Paul Curtz, Nov 03 2009 STATUS approved

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Last modified April 22 11:46 EDT 2019. Contains 322330 sequences. (Running on oeis4.)