A217927 - OEIS

A217927

Elements of the horizontal ADOMAH periodic table written from right to left, from bottom to top.

2, 1, 4, 3, 10, 9, 8, 7, 6, 5, 12, 11, 18, 17, 16, 15, 14, 13, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 36, 35, 34, 33, 32, 31, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 38, 37, 54, 53, 52, 51, 50, 49, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 102, 101, 100, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89

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OFFSET

1,1

COMMENTS

We first write a variant of the ADOMAH periodic table:

1 2

5 6 7 8 9 10 3 4

21 22 23 24 25 26 27 28 29 30 13 14 15 16 17 18 11 12

57 to 70 39 40 41 42 43 44 45 46 47 48 31 32 33 34 35 36 19 20 (B)

89 to 102 71 72 73 74 75 76 77 78 79 80 49 50 51 52 53 54 37 38

103104105106107108109110111112 81 82 83 84 85 86 55 56

113114115116117118 87 88

119120

(See A219388).

It could be written vertically.

Differences of (2,4,12,20,38,56,88,120,... = A168380) = 2,8,8,18,18,... = A093907 from a 118 terms table.

The number of elements in the n-th period (2,8,18,32,32,18,8,2) is in A168281. Compare to A093907 = 2,8,8,18,18,32,32,50,...(extension of the Mendeleyev-Moseley-Seaborg table) and A137583 = 2,2,8,8,18,18,32,32. See the possible element 120 in A168208 (which must be clarified).

The horizontal ADOMAH periodic table (2006) is

119120

113114115116117118 87 88

103104105106107108109110111112 81 82 83 84 85 86 55 56

89 to 102 71 72 73 74 75 76 77 78 79 80 49 50 51 52 53 54 37 38 (A)

57 to 70 39 40 41 42 43 44 45 46 47 48 31 32 33 34 35 36 19 20

21 22 23 24 25 26 27 28 29 30 13 14 15 16 17 18 11 12

5 6 7 8 9 10 3 4

1 2

Generally it is written vertically.

REFERENCES

Philip J. Stewart, "Charles Janet, Unrecognized genius of the periodic system", Foundations of Chemistry, January, 2009. ISSN 1386-4238.