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 A212871 Number of nondecreasing sequences of 4 1..n integers with no element dividing the sequence sum 2
 0, 0, 1, 5, 15, 29, 59, 103, 168, 259, 386, 553, 772, 1043, 1401, 1832, 2356, 2980, 3729, 4622, 5680, 6872, 8263, 9872, 11716, 13767, 16122, 18765, 21707, 25010, 28650, 32686, 37173, 42036, 47466, 53375, 59783, 66728, 74355, 82632, 91519, 101150 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS Row 4 of A212868 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=8 ..2....3....4....3....4....3....2....4....4....2....2....3....4....2....2....2 ..3....3....7....5....5....3....5....4....6....3....4....5....6....2....5....5 ..6....5....7....7....5....4....6....5....7....4....5....5....8....3....5....5 ..8....5....7....7....5....7....8....6....8....8....8....6....8....4....7....5 CROSSREFS Sequence in context: A268581 A298025 A162525 * A188350 A268222 A285630 Adjacent sequences:  A212868 A212869 A212870 * A212872 A212873 A212874 KEYWORD nonn AUTHOR R. H. Hardin May 29 2012 STATUS approved

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Last modified February 22 17:14 EST 2020. Contains 332140 sequences. (Running on oeis4.)