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A133092
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Row sums of triangle A133091.
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1
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1, 4, 6, 16, 15, 36, 28, 64, 45, 100, 66, 121, 91, 144, 120, 169, 153, 196, 190, 225, 231, 256, 276, 289
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| Squares interleaved with hexagonal numbers, A000384; such that A000384(n), (n,odd) = A000384((n+1)/2)
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EXAMPLE
| a(4) = 16 = sum of row 4 terms of triangle A133091: (2 + 4 + 6 + 4).
a(4) = 16 = 4^2.
a(7) = 28 = A000384(4), where A000384 = (1, 6, 15, 28, 45, 66, 91,...).
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CROSSREFS
| Cf. A133091, A000384.
Sequence in context: A154784 A062955 A174932 * A056222 A186201 A138624
Adjacent sequences: A133089 A133090 A133091 * A133093 A133094 A133095
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KEYWORD
| nonn
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 09 2007
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