A217514 Partial sums of nonzero terms in A005927.

4, 10, 22, 30, 42, 66, 82, 106, 136, 148, 172, 196, 220, 256, 268, 316, 344, 368, 404, 452, 476, 512, 542, 578, 610, 634, 706, 730, 790, 838, 874, 922, 950, 974, 1022, 1034, 1130, 1190, 1214, 1274, 1346, 1370, 1418, 1472, 1520, 1568, 1604, 1676, 1724, 1784

Offset: 0

Author

N. J. A. Sloane, Oct 05 2012

Keywords

• nonn

Comments

Sizes of clusters of atoms in diamond structure.

References

• N. J. A. Sloane, Theta-Series and Magic Numbers for Diamond and Certain Ionic Crystal Structures, J. Math. Phys., 28 (1987), pp. 1653-1657.

Crossrefs

Cf. A005925-A005927, A217512-A217514.

Programs

PARI

lista(m) = {s = 0; for (n=0, m, v = A005927(n); if (v != 0, s += v; print1(s, ", ");););} \\ Michel Marcus, Feb 17 2013

Extensions

More terms from Michel Marcus, Feb 17 2013