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Search: id:A165727
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| A165727 |
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A palindromic writing of denominators of Rydberg-Ritz spectra of hydrogen preceded by the case corresponding to infinity. |
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+0
2
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| 0, 0, 0, 0, 1, 0, 0, 4, 4, 0, 9, 1, 9, 0, 0, 16, 36, 36, 16, 0, 0, 25, 16, 1, 16, 25, 0, 0, 36, 144, 144, 36, 0, 0, 49, 9, 225, 1, 225, 9, 49, 0, 0, 64, 196, 12, 400, 400, 12, 196, 64, 0, 0, 81, 64, 441, 144, 1, 144, 441, 64, 81, 0, 0, 100, 324, 576, 784, 900, 900, 784, 576, 324, 100
(list; graph; listen)
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OFFSET
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1,8
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COMMENT
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Antidiagonal writing from array of sequences 0,0,0,0,0,0,0,0,0,0,=A000004 (spectrum n=0) 0,1,4,9,16,25,36,49,64,81,=A000290,Lyman (1) 0,4,1,36,16,100,9,196,64,324,=A161038(n-2),offset 0,=A152977(n+2),Balmer, (2) 0,9,36,1,144,225,12,441,576,81,=A161040(n-3),offset 0,Paschen (3) 0,16,16,144,1,400,144,784,64,1296,=A161042(n-4),offset 0,Brackett (4) 0,25,100,225,400,1,900,1225,1600,2025,=A161044(n-5),offset 0,Pfund (5) 0,36,9,12,144,900,1,1764,576,324,=A161046(n-6),offset 0,Humphreys (6) 0,49,196,441,784,1225,1764,1,3136,3969,=A161048(n-7),offset 0,Hansen-Strong (7) 0,64,64,576,64,1600,576,3136,1,5184,=A161050(n-8),offset 0, (8) 0,81,324,81,1296,2025,324,3969,5184,1 (9) . Note array is also array in A165441 preceded with a column and a row of 0's.
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CROSSREFS
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Sequence in context: A121455 A133657 A129507 this_sequence A021698 A121547 A028626
Adjacent sequences: A165724 A165725 A165726 this_sequence A165728 A165729 A165730
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KEYWORD
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nonn,uned
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Sep 25 2009
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