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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A350199 a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero octagonal numbers in exactly n ways, or 0 if no such integer exists. 4 1, 105, 238, 302, 342, 406, 570, 622, 639, 686, 758, 750, 822, 815, 862, 883, 926, 983, 1027, 966, 995, 987, 1099, 1091, 1159, 1142, 1143, 1183, 1227, 1171, 1231, 1163, 1315, 1295, 1296, 1275, 1372, 1267, 1371, 1343, 1375, 1399, 1476, 1411, 1403, 1407, 1463, 1451, 1508, 1507 (list; graph; refs; listen; history; text; internal format) OFFSET 1,2 LINKS Table of n, a(n) for n=1..50. Eric Weisstein's World of Mathematics, Octagonal Number CROSSREFS Cf. A000567, A097563, A274046, A279281, A350196, A350197, A350198. Sequence in context: A307108 A262723 A250757 * A146257 A075764 A046299 Adjacent sequences: A350196 A350197 A350198 * A350200 A350201 A350202 KEYWORD nonn AUTHOR Ilya Gutkovskiy, Dec 19 2021 STATUS approved

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Last modified August 18 13:06 EDT 2024. Contains 375269 sequences. (Running on oeis4.)