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A299286 Partial sums of A299285. 51
1, 11, 44, 117, 245, 444, 729, 1117, 1623, 2263, 3052, 4007, 5143, 6476, 8021, 9795, 11813, 14091, 16644, 19489, 22641, 26116, 29929, 34097, 38635, 43559, 48884, 54627, 60803, 67428, 74517, 82087, 90153, 98731, 107836, 117485, 127693, 138476, 149849 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..38.

FORMULA

Conjectures from Colin Barker, Feb 11 2018: (Start)

G.f.: (1 + 8*x + 14*x^2 + 17*x^3 + 14*x^4 + 8*x^5 + x^6) / ((1 - x)^4*(1 + x)*(1 + x^2)).

a(n) = 3*a(n-1) - 3*a(n-2) + a(n-3) + a(n-4) - 3*a(n-5) + 3*a(n-6) - a(n-7) for n>6.

(End)

CROSSREFS

Cf. A299285.

The 28 uniform 3D tilings: cab: A299266, A299267; crs: A299268, A299269; fcu: A005901, A005902; fee: A299259, A299265; flu-e: A299272, A299273; fst: A299258, A299264; hal: A299274, A299275; hcp: A007899, A007202; hex: A005897, A005898; kag: A299256, A299262; lta: A008137, A299276; pcu: A005899, A001845; pcu-i: A299277, A299278; reo: A299279, A299280; reo-e:  A299281, A299282; rho: A008137, A299276; sod: A005893, A005894; sve: A299255, A299261; svh: A299283, A299284; svj: A299254, A299260; svk: A010001, A063489; tca: A299285, A299286; tcd: A299287, A299288; tfs: A005899, A001845; tsi: A299289, A299290; ttw: A299257, A299263; ubt: A299291, A299292; bnn: A007899, A007202. See the Proserpio link in A299266 for overview.

Sequence in context: A172526 A111080 A299288 * A022816 A120537 A068596

Adjacent sequences:  A299283 A299284 A299285 * A299287 A299288 A299289

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 10 2018

STATUS

approved

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Last modified November 15 07:53 EST 2018. Contains 317225 sequences. (Running on oeis4.)