A137575 Successive structures central number of Seaborg's periodic table of the elements (extended to 32 columns) for odd rows.

1, 2, 8, 8, 8, 8, 8, 8, 8, 8, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32

Offset: 1

Author

Paul Curtz, Apr 26 2008

Keywords

• nonn
• fini
• full
• uned

Comments

Note that 60 is half of 120, the number of elements in Charles Janet's 32-column table. This implies the existence of element 119, Ununennium (structure last number is 9) and element 120, Unbinilium (10). Structure of element 117, Ununseptium, is unknown.

Crossrefs

Cf. A134984, 118 elements.

Formula

60 terms: 2 (2's) (1,2) + 8 (8's) + 18 (18's) + 32 (32's).