OFFSET
1,1
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).
MATHEMATICA
Table[Range[2 Ceiling[n/2]^2] + (# + 1) (3 + 2 #^2 + 4 # - 3 (-1)^#)/12 &[n - 1], {n, 2, 8, 2}] // Flatten (* Michael De Vlieger, Jul 21 2016 *)
CROSSREFS
KEYWORD
nonn,less,fini,full
AUTHOR
Paul Curtz, May 03 2008
EXTENSIONS
Edited by R. J. Mathar, Oct 07 2009
STATUS
approved