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 A107853 G.f. x*(x-1)*(x+1)^3/((2*x^3+x^2-1)*(x^4+1)). 2
 0, 1, 2, 1, 2, 3, 2, 7, 10, 13, 26, 33, 50, 83, 114, 183, 282, 413, 650, 977, 1474, 2275, 3426, 5223, 7978, 12077, 18426, 28033, 42578, 64883, 98642, 150039, 228410, 347325, 528490, 804145, 1223138, 1861123, 2831426, 4307399, 6553674, 9970253 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Index entries for linear recurrences with constant coefficients, signature (0,1,2,-1,0,1,2). FORMULA a(n) = 2*A159287(n) + A091337(n+6). MATHEMATICA LinearRecurrence[{0, 1, 2, -1, 0, 1, 2}, {0, 1, 2, 1, 2, 3, 2}, 50] (* Harvey P. Dale, Jan 24 2018 *) PROG Floretion Algebra Multiplication Program, FAMP Code: - 2basejforzapseq[(.5i' + .5j' + .5'ki' + .5'kj')*(.5'i + .5'j + .5'ik' + .5'jk')], 1vesforzap = A000004 CROSSREFS Cf. A107849, A107850, A107851, A107852, A107854. Sequence in context: A214720 A035368 A249686 * A054758 A077876 A095056 Adjacent sequences:  A107850 A107851 A107852 * A107854 A107855 A107856 KEYWORD easy,nonn AUTHOR Creighton Dement, May 25 2005 STATUS approved

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Last modified August 3 08:10 EDT 2020. Contains 336197 sequences. (Running on oeis4.)