login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A138101 The atomic numbers read along the even-indexed rows of the Janet table of the elements. 5
3, 4, 13, 14, 15, 16, 17, 18, 19, 20, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

The union with A138100 gives the first 120 terms of A000027.

LINKS

Albert Tarantola, PSE of Elements (Janet form).

Anonymous, Janet periodic table, Web Elements Chemistry Nexus

EXAMPLE

Starts with 3 and 4 of the 2nd row (Li and Be). Next come 13 to 20 of the 4th row (Al to Ca).

CROSSREFS

Sequence in context: A071543 A127611 A082197 * A095790 A109474 A053910

Adjacent sequences:  A138098 A138099 A138100 * A138102 A138103 A138104

KEYWORD

nonn,less,fini,full

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), May 03 2008

EXTENSIONS

Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 07 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 23:04 EST 2012. Contains 205686 sequences.