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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A075346 Initial terms of groups in A075345. 4 2, 1, 3, 6, 11, 15, 22, 28, 36, 45, 55, 66, 78, 92, 105, 121, 136, 153, 171, 190, 210, 232, 253, 276, 300, 324, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666, 704, 741, 780, 820, 861, 903, 946, 990, 1035, 1081, 1127, 1176, 1225, 1274, 1326, 1378, 1431 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 COMMENTS a(n) = A075348(n,1). - Reinhard Zumkeller, Sep 26 2015 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 PROG (Haskell) a075346 = head . a075348_row -- Reinhard Zumkeller, Sep 26 2015 CROSSREFS Cf. A075345, A075347. Cf. A075348. Sequence in context: A098124 A020992 A025110 * A357844 A104529 A095024 Adjacent sequences: A075343 A075344 A075345 * A075347 A075348 A075349 KEYWORD nonn AUTHOR Amarnath Murthy, Sep 19 2002 EXTENSIONS More terms from David Wasserman, Jan 16 2005 STATUS approved

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Last modified August 18 04:21 EDT 2024. Contains 375255 sequences. (Running on oeis4.)