A299275 Partial sums of A299274.

1, 5, 14, 32, 62, 109, 178, 269, 394, 554, 745, 983, 1265, 1596, 1987, 2435, 2943, 3525, 4175, 4884, 5674, 6551, 7515, 8562, 9702, 10955, 12308, 13771, 15331, 16998, 18799, 20707, 22750, 24915, 27212, 29683, 32263, 35000, 37893, 40913, 44115, 47459, 50988, 54674, 58530, 62612, 66817

Offset

0,2

Comments

First 120 terms computed by Davide M. Proserpio using ToposPro.

Links

Table of n, a(n) for n=0..46.

V. A. Blatov, A. P. Shevchenko, D. M. Proserpio, Applied Topological Analysis of Crystal Structures with the Program Package ToposPro, Cryst. Growth Des. 2014, 14, 3576-3586.

Reticular Chemistry Structure Resource (RCSR), The hal tiling (or net)

Formula

There is a conjectured g.f., see the g.f. for A299274 and divide by 1-x. Note: this should not be used to generate a b-file. - N. J. A. Sloane, Feb 13 2018

Crossrefs

Cf. A299274.

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: A219902 A064412 A211803 * A266759 A139754 A036595

Adjacent sequences: A299272 A299273 A299274 * A299276 A299277 A299278

Keyword

nonn

Author

N. J. A. Sloane, Feb 10 2018

Status

approved