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A157421
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a(0)=1. a(n) = the smallest integer coprime to a(n-1) and greater than n^2.
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3
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1, 2, 5, 11, 17, 26, 37, 50, 67, 82, 101, 122, 145, 171, 197, 226, 257, 290, 327, 362, 401, 442, 485, 531, 577, 626, 677, 730, 787, 842, 901, 962, 1025, 1091, 1157, 1226, 1297, 1370, 1447, 1522, 1601, 1682, 1765, 1851, 1937, 2026, 2117, 2210, 2307, 2402, 2501
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| a(7) = 50, and 8^2 is 64. So for a(8) we want the smallest integer that is both coprime to 50 and is > 64. Checking: 65 is not coprime to 50. 66 is not coprime to 50. But 67 is coprime to 50, so a(8) = 67.
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CROSSREFS
| Cf. A157419, A157420.
Sequence in context: A086319 A053033 A115057 * A038390 A048210 A153222
Adjacent sequences: A157418 A157419 A157420 * A157422 A157423 A157424
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet, Feb 28 2009
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EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 19 2009
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