A138102 -id:A138102 - cp's OEIS frontend

A166071 Sum of the atomic numbers in the n-th column of the Janet table of the first 120 elements.

146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 234, 238, 242, 246, 250, 254, 258, 262, 266, 270, 292, 298, 304, 310, 316, 322, 332, 340

Offset: 1

Paul Curtz, Oct 06 2009

			a(1) = 57 (La) +89 (Ac).
a(14) = 70 (Yb) +102 (No).
a(15) = 21 (Sc) +39 (Y) +71 (Lu) +103 (Lr).
a(24) = 30 (Zn) +48 (Cd) +80 (Hg) +112.
a(25) = 5+13+31+49+81+113.
a(31) = 1 (H) +3 (Li) +11 (Na) +19 (K) +37 (Rb) +55 (Cs) +187 (Fr) +119.

Albert Tarantola, PSE of Elements (Janet form).
Anonymous, Janet periodic table, Web Elements Chemistry Nexus

Cf. A137325, A137583, A138102

sum_{n=1..32} a(n) = A000217(120).

a(32) corrected, tutorial description of the PSE and historical anectodes removed. - R. J. Mathar, Oct 07 2009

A138300 Differences of each column for atomic numbers of Mendeleyev-Seaborg 7*32 elements periodic table,first extension,A138096 table.86 terms.Horizontal lecture.

Original entry on oeis.org

2, 8, 8, 8, 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, 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, 32, 32

Offset: 0

Paul Curtz, May 07 2008

			First column differences: 2, 8, 8, 18, 18, 32; second: 8, 8, 18, 18, 32.
Table: 1 2, 11 8's, 27 18's, 47 32's
2.............................................................................................8
8..8...........................................................................8..8..8..8..8..8
8..8..........................................................................18.18.18.18.18.18
18.18.18...........................................18.18.18.18.18.18.18.18.18.18.18.18.18.18.18
18.18.18...........................................32.32.32.32.32.32.32.32.32.32.32.32.32.32.32
32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32

Cf. A093907, A137508, A137575, A137583, A138102.

cp's OEIS Frontend

A166071 Sum of the atomic numbers in the n-th column of the Janet table of the first 120 elements.

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