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Search: id:A092960
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| A092960 |
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Least square of the form 'sum of n successive terms of a geometric progression + 1', or 0 if no such square exists. |
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+0
1
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OFFSET
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1,2
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COMMENT
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Conjecture: No term is zero.
If n is even, a(n) = 2^n. - Ray G. Opao (1260(AT)email.com), Feb 25 2005
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EXAMPLE
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a(3) = 64 = (3 + 12 + 48) + 1, a(4) = 16 = (1 + 2 + 4 + 8) + 1.
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CROSSREFS
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Cf. A092959.
Sequence in context: A120083 A110219 A162990 this_sequence A144153 A144162 A027644
Adjacent sequences: A092957 A092958 A092959 this_sequence A092961 A092962 A092963
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KEYWORD
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more,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 25 2004
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EXTENSIONS
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Corrected and extended by Ray G. Opao (1260(AT)email.com), Feb 25 2005
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