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A001386 Coordination sequence for 4-dimensional I-centered tetragonal orthogonal lattice. 0
1, 12, 56, 164, 368, 700, 1192, 1876, 2784, 3948, 5400, 7172, 9296, 11804, 14728, 18100, 21952, 26316, 31224, 36708, 42800, 49532, 56936, 65044, 73888, 83500, 93912, 105156, 117264, 130268, 144200 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

M. O'Keeffe, Coordination sequences for lattices, Zeit. f. Krist., 210 (1995), 905-908.

MAPLE

[ seq( (16*k^3+20*k)/3, k=1..40) ];

CROSSREFS

Equals 4 * A004006(2n), n>0.

Sequence in context: A104188 A069552 A035005 * A046998 A009430 A035289

Adjacent sequences:  A001383 A001384 A001385 * A001387 A001388 A001389

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 13 18:33 EST 2012. Contains 205535 sequences.