A138096 -id:A138096 - cp's OEIS frontend

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

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.

A199934 Extended d-block elements for Janet table.

Original entry on oeis.org

21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 347

Offset: 1

Paul Curtz, Nov 12 2011

After the s-block (A160914) and the p-block (A138469), we present the d-block (4*10) elements for the Janet table, in A167268. Janet published his table in a 1928 book (see below), 24 of planche 7, in which he also introduced the s, p, d, f blocks (called nappes 1, 2, 3, 4).
a(n) also comes from one of the two classical Mendeleyev-Moseley-Seaborg periodic table(s) i.e. (see A138096):
                                                2
 4                                       5 to  10
12                                      13 to  18
20                          21 to  30   31 to  36
38                          39 to  48   49 to  54
56  57 to  70   71 to  80   81 to  86
88  89 to 102  103 to 112  113 to 118.
(The second is in A134982).

Charles Janet, Essais de classification hélicoidale des éléments chimiques, April 1928, N3, Beauvais, 2 + 104 pages, 4 leaflets (4 to 7).

Wikipedia, The Janet periodic table

A138098 The Mendeleyev-Seaborg periodic table read from right to left (with spaces omitted).

Original entry on oeis.org

2, 1, 10, 9, 8, 7, 6, 5, 4, 3, 18, 17, 16, 15, 14, 13, 12, 11, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 118, 117, 116, 115, 114, 113, 112, 111, 110, 109, 108

Offset: 1

Paul Curtz, May 03 2008

nonn

A permutation of the numbers 1 to 118.

Comparing this with A138096, it looks as if the last row was not reversed. Is this an error? - N. J. A. Sloane, May 06 2008

Cf. A138096.

cp's OEIS Frontend

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

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A199934 Extended d-block elements for Janet table.

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A138098 The Mendeleyev-Seaborg periodic table read from right to left (with spaces omitted).

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