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 A023451 a(n) = n-9. 4
 -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Tanya Khovanova, Recursive Sequences Index entries for linear recurrences with constant coefficients, signature (2,-1). FORMULA G.f.: -(9-10*x)/(1-x)^2. - Bruno Berselli, Sep 02 2011 a(n) = 2 a(n-1) - a(n-2). a(n) = -A022965(n). - M. F. Hasler, Apr 18 2015 MAPLE A023451 := n -> n-9; # M. F. Hasler, Apr 18 2015 MATHEMATICA Range[0, 60]-9 (* Harvey P. Dale, Jan 15 2015 *) PROG (PARI) a(n)=n-9 CROSSREFS Cf. A256958, A001057, A000027, A001477, A023443, ..., A023450, A023452, ..., A023482, A022958, ..., A022996. The negative of A022965. Sequence in context: A089739 A199264 A022965 * A109910 A307340 A084019 Adjacent sequences:  A023448 A023449 A023450 * A023452 A023453 A023454 KEYWORD sign,easy AUTHOR STATUS approved

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Last modified December 8 12:07 EST 2019. Contains 329862 sequences. (Running on oeis4.)