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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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2
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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; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = A056108: (1, 5, 15, 31, 53,...).
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EXAMPLE
| 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
| Cf. A056108.
Sequence in context: A193529 A066575 A070251 * A205137 A154905 A124739
Adjacent sequences: A134231 A134232 A134233 * A134235 A134236 A134237
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 14 2007
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