| 1, 2, 3, 5, 6, 9, 10, 14, 16, 19, 20, 28, 29, 32, 35, 43, 44, 52, 53, 61, 64, 67, 68, 88, 90, 93, 97, 105, 106, 119, 120, 136, 139, 142, 145, 171, 172, 175, 178, 198, 199, 212, 213, 221, 229, 232, 233, 281, 283, 291, 294, 302, 303, 323, 326, 346, 349, 352, 353, 397, 398, 401
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Permanent of n X n (0,1) matrix defined by A(i,j)=1 iff j=1 or i divides j. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Jul 05 2003
Partial sums of A074206, ordered factorizations. - Augustine O. Munagi (amunagi(AT)yahoo.com), Jul 10 2007
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LINKS
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Herbert S. Wilf, The Redheffer matrix of a partially ordered set, The Electronic Journal of Combinatorics, Volume 11(2), 2004, R#10.
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FORMULA
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Running sum of A002033.
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CROSSREFS
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Cf. A002321.
Cf. A074206, A002033.
Sequence in context: A092213 A117142 A076061 this_sequence A128689 A116137 A133030
Adjacent sequences: A025520 A025521 A025522 this_sequence A025524 A025525 A025526
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KEYWORD
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nonn
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AUTHOR
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David W. Wilson (davidwwilson(AT)comcast.net)
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