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 A301671 Partial sums of A301670. 0
 1, 5, 13, 25, 41, 63, 89, 115, 151, 187, 231, 273, 327, 377, 441, 497, 569, 635, 717, 787, 879, 959, 1059, 1145, 1255, 1349, 1469, 1569, 1697, 1807, 1945, 2059, 2207, 2331, 2487, 2617, 2783, 2921, 3097, 3241, 3425, 3579, 3773, 3931, 4135, 4303, 4515, 4689, 4911, 5093, 5325, 5513, 5753, 5951, 6201, 6403, 6663 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA Conjectures from Chai Wah Wu, Mar 11 2021: (Start) a(n) = a(n-2) + a(n-3) + a(n-4) - a(n-5) - a(n-6) - a(n-7) + a(n-9) for n > 9. G.f.: (2*x^9 - x^8 - 5*x^7 - 16*x^6 - 21*x^5 - 22*x^4 - 19*x^3 - 12*x^2 - 5*x - 1)/((x - 1)^3*(x + 1)^2*(x^2 + 1)*(x^2 + x + 1)). (End) CROSSREFS Cf. A301670. Sequence in context: A301302 A133322 A299258 * A268525 A146590 A098483 Adjacent sequences: A301668 A301669 A301670 * A301672 A301673 A301674 KEYWORD nonn AUTHOR N. J. A. Sloane, Mar 25 2018 STATUS approved

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Last modified March 30 16:04 EDT 2023. Contains 361622 sequences. (Running on oeis4.)