A137913 Rows 2, 4, 6 of Mendeleyev-Seaborg (extended to 32 columns) periodic table elements.

3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86

Offset

0,1

Comments

58 terms. Companion of A137904(60 terms). Both "well" ordered give 118 terms sequence (increasing) 1 to 118;19-10=9, 55-36=19, a(n) differences lead to difference 3 before a(0)=3. Hence neutral element 0.

Links

Table of n, a(n) for n=0..57.

Crossrefs

Cf. A134984, A135559.

Sequence in context: A160238 A039165 A138220 * A137937 A260580 A297468

Adjacent sequences: A137910 A137911 A137912 * A137914 A137915 A137916

Keyword

nonn,fini,full

Author

Paul Curtz, Apr 30 2008

Status

approved