| 1, 3, 2, 6, 5, 3, 13, 12, 9, 5, 22, 21, 18, 13, 7, 42, 41, 37, 30, 21, 11, 66, 65, 61, 53, 42, 29, 15, 112, 111, 106, 96, 81, 63, 43, 22, 172, 171, 166, 154, 136, 113, 87, 59, 30, 270, 269, 263, 249, 226, 196, 161, 123, 83, 42, 397, 396, 390, 374, 347, 310, 266, 217, 165
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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m=1 column: A058397(n).
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FORMULA
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a(n, m)= sum(A026820(n, k), k=m..n).
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EXAMPLE
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1; 3,2; 6,5,3; 13,12,9,5; ...
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CROSSREFS
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Cf. A026820, A058397.
Sequence in context: A090571 A088452 A049777 this_sequence A105027 A120913 A038722
Adjacent sequences: A058398 A058399 A058400 this_sequence A058402 A058403 A058404
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KEYWORD
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nonn,tabl
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AUTHOR
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Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Dec 11 2000
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