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 A254826 Number of length n 1..(7+1) arrays with every leading partial sum divisible by 2, 3 or 5 1
 6, 35, 185, 1000, 5780, 34624, 207232, 1201694, 6724852, 37283903, 210907957, 1225707516, 7200835884, 41885827823, 239167248212, 1350246388269, 7648300912891, 43874800122164, 254224417999394, 1473047739951201 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A254827 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 24*a(n-4) +1210*a(n-5) +11567*a(n-6) +53545*a(n-7) +155565*a(n-8) +319478*a(n-9) +493380*a(n-10) +590848*a(n-11) +555252*a(n-12) +410274*a(n-13) +238255*a(n-14) +109308*a(n-15) +40497*a(n-16) +12746*a(n-17) +3661*a(n-18) +995*a(n-19) +240*a(n-20) +43*a(n-21) +4*a(n-22) EXAMPLE Some solutions for n=4 ..5....2....5....3....2....4....5....6....8....3....4....6....2....4....4....3 ..4....7....3....5....8....4....5....6....1....1....6....3....1....2....2....1 ..6....3....4....1....5....8....6....8....5....5....6....5....3....8....6....4 ..3....6....4....6....3....6....2....5....2....5....6....8....2....8....2....4 CROSSREFS Sequence in context: A002041 A103995 A137628 * A274373 A328331 A346318 Adjacent sequences: A254823 A254824 A254825 * A254827 A254828 A254829 KEYWORD nonn AUTHOR R. H. Hardin, Feb 08 2015 STATUS approved

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Last modified March 29 05:10 EDT 2023. Contains 361596 sequences. (Running on oeis4.)