A138726 Atomic numbers of the periodic table of the elements, read downwards along 72 columns, up to the 11th period.

1, 3, 11, 19, 37, 55, 87, 119, 169, 219, 291, 4, 12, 20, 38, 56, 88, 120, 170, 220, 292, 21, 39, 57, 89, 121, 171, 221, 293, 58, 90, 122, 172, 222, 294, 123, 173, 223, 295, 224, 296, 225, 297, 226, 298, 227, 299, 228, 300, 229, 301, 230, 302, 231, 303, 232, 304, 233

Offset: 1

Author

Omar E. Pol, Apr 09 2008

Keywords

• fini
• nonn

Comments

This finite sequence has 362 members. Atomic numbers > 362 are not members.

Examples

			========================================================================
............................ STRUCTURE OF .............................
................. THE PERIODIC TABLE OF THE ELEMENTS ..................
............................ (72 columns) .............................
========================================================================
X......................................................................X
XX................................................................XXXXXX
XX................................................................XXXXXX
XXX......................................................XXXXXXXXXXXXXXX
XXX......................................................XXXXXXXXXXXXXXX
XXXX........................................XXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXX........................................XXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXX......................XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXX......................XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
========================================================================
		

Crossrefs

Cf. A099955, A134984, A138723, A138724, A138725.