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Search: id:A073221
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| A073221 |
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The terms of A073213 (sums of two powers of 17) divided by 2. |
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+0
1
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| 1, 9, 17, 145, 153, 289, 2457, 2465, 2601, 4913, 41761, 41769, 41905, 44217, 83521, 709929, 709937, 710073, 712385, 751689, 1419857, 12068785, 12068793, 12068929, 12071241, 12110545, 12778713, 24137569, 205169337, 205169345, 205169481
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OFFSET
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1,2
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FORMULA
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(17^n + 17^m) / 2, n = 0, 1, 2, 3 ..., m = 0, 1, 2, 3, ... n.
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EXAMPLE
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a(4) = 145 = (17^2+17^0) / 2
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CROSSREFS
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Cf. A073213.
Adjacent sequences: A073218 A073219 A073220 this_sequence A073222 A073223 A073224
Sequence in context: A015443 A121442 A049440 this_sequence A110462 A132375 A110360
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KEYWORD
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easy,nonn
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AUTHOR
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Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Jul 21 2002
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