A217513 Partial sums of nonzero terms in A005926.

2, 8, 20, 32, 38, 56, 74, 86, 116, 130, 136, 166, 190, 208, 238, 264, 288, 318, 342, 360, 384, 420, 444, 492, 522, 534, 588, 612, 648, 690, 714, 732, 768, 822, 840, 894, 942, 966, 1026, 1050, 1068, 1134, 1190, 1220, 1256, 1280, 1310, 1382, 1418, 1448, 1508

Offset

0,1

Comments

Sizes of clusters of atoms in diamond structure.

Links

Andy Huchala, Table of n, a(n) for n = 0..98

N. J. A. Sloane, Theta series and magic numbers for diamond and certain ionic crystal structures, J. Math. Phys. 28 (1987), 1653-1657.

Crossrefs

Cf. A005925-A005927, A217512-A217514.

Sequence in context: A137306 A110856 A048041 * A071386 A031114 A327100

Adjacent sequences: A217510 A217511 A217512 * A217514 A217515 A217516

Keyword

nonn

Author

N. J. A. Sloane, Oct 05 2012

Extensions

More terms from Andy Huchala, May 17 2023

Status

approved