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Search: id:A026474
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| A026474 |
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a(n) = least positive integer > a(n-1) and not equal to a(i)+a(j) or a(i)+a(j)+a(k) for 1<=i<j<k<n (a 3-Stohr sequence). |
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+0
7
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| 1, 2, 4, 8, 15, 22, 29, 36, 43, 50, 57, 64, 71, 78, 85, 92, 99, 106, 113, 120, 127, 134, 141, 148, 155, 162, 169, 176, 183, 190, 197, 204, 211, 218, 225, 232, 239, 246, 253, 260, 267, 274, 281, 288, 295, 302, 309, 316, 323, 330, 337, 344, 351, 358, 365, 372
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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All h-Stohr sequences have formula: h terms 1,2,..,2^(n-1),..,2^(h-1) and then continue (2^h-1)(n-h)+1 - Henry Bottomley (se16(AT)btinternet.com), Feb 04 2000
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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FORMULA
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Starts 1, 2, 4 then the numbers 7*(n-3)+1.
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CROSSREFS
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Cf. A026472, A026476, A033627 A051039 A051040.
Sequence in context: A070008 A033623 A094398 this_sequence A082562 A159243 A089140
Adjacent sequences: A026471 A026472 A026473 this_sequence A026475 A026476 A026477
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
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More terms from Eric Weisstein (eric(AT)weisstein.com)
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