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 A175967 Lexicographically earliest sequence with first differences as increasing sequence of nonprimes A018252. 9
 1, 2, 6, 12, 20, 29, 39, 51, 65, 80, 96, 114, 134, 155, 177, 201, 226, 252, 279, 307, 337, 369, 402, 436, 471, 507, 545, 584, 624, 666, 710, 755, 801, 849, 898, 948, 999, 1051, 1105, 1160, 1216, 1273, 1331, 1391, 1453, 1516, 1580, 1645, 1711, 1779 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Complement of A175968. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 FORMULA a(n) - a(n-1) = A018252(n-1) for n >= 2. PROG (Haskell) a175967 n = a175967_list !! n a175967_list = scanl (+) 1 a018252_list -- Reinhard Zumkeller, Mar 26 2015 CROSSREFS Cf. A175965, A175966, A175968, A014284, A175969, A051349, A175970. Cf. A018252. Sequence in context: A031426 A258633 A244362 * A254949 A034100 A034110 Adjacent sequences:  A175964 A175965 A175966 * A175968 A175969 A175970 KEYWORD nonn AUTHOR Jaroslav Krizek, Oct 31 2010 STATUS approved

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Last modified May 16 14:07 EDT 2021. Contains 343947 sequences. (Running on oeis4.)