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 A183529 An Ulam-type sequence: a(n) = n if n<=6; for n>6, a(n) = least number > a(n-1) which is a unique sum of 6 distinct earlier terms. 2
 1, 2, 3, 4, 5, 6, 21, 36, 37, 38, 39, 40, 41, 51, 61, 66, 284, 285, 289, 290, 297, 298, 299, 310, 312, 559, 561, 562, 570, 571, 574, 575, 834, 836, 837, 838, 839, 840, 841, 849, 850, 1109, 1124, 1125, 1126, 1127, 1386, 1401, 1402, 1661, 1676, 1677, 1936, 1951 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS An Ulam-type sequence - see A002858 for further information. LINKS Alois P. Heinz, Table of n, a(n) for n = 1..700 EXAMPLE a(7) = 21 = 1 + ... + 6 = 6*7/2, because it is the least number >6 with a unique sum of 6 distinct earlier terms. a(8) = 36 = 1 + ... + 5 + 21 = 6^2, because it is the least number >21 with a unique sum of 6 distinct earlier terms. MAPLE # see A183534 for programs. CROSSREFS Column k=6 of A183534. Cf. A002858, A007086, A183527-A183533, A135737. Sequence in context: A123678 A208450 A037333 * A037404 A037440 A037332 Adjacent sequences:  A183526 A183527 A183528 * A183530 A183531 A183532 KEYWORD nonn AUTHOR Jonathan Vos Post, Alois P. Heinz, Jan 05 2011 STATUS approved

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