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Search: id:A134234
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| A134234 |
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Triangle read by rows, n-th row = n terms of 2n, 2n+2, 2n+4,...1; with a(1) = 1. |
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+0
3
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| 1, 4, 1, 6, 8, 1, 8, 10, 12, 1, 10, 12, 14, 16, 1, 12, 14, 16, 18, 20, 1, 14, 16, 18, 20, 22, 24, 1, 16, 18, 20, 22, 24, 26, 28, 1, 18, 20, 22, 24, 26, 28, 30, 32, 1, 20, 22, 24, 26, 28, 30, 32, 34, 36, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A056108: (1, 5, 15, 31, 53,...).
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EXAMPLE
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First few rows of the triangle are:
1;
4, 1;
6, 8, 1;
8, 10, 12, 1;
10, 12, 14, 16, 1;
...
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CROSSREFS
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Cf. A056108.
Sequence in context: A021028 A066575 A070251 this_sequence A124739 A122662 A083843
Adjacent sequences: A134231 A134232 A134233 this_sequence A134235 A134236 A134237
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 14 2007
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