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A072630
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Values of n where A072629 switches from 01010.. into 0000.. or back.
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4
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1, 7, 19, 53, 147, 403, 1095, 2979, 8103, 22025, 59873, 162753, 442413, 1202603, 3269017, 8886109, 24154951, 65659969, 178482299, 485165195, 1318815733, 3584912845, 9744803445, 26489122129, 72004899337, 195729609427
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| See program below.
a(n) = A000149(n) or A000149(n)-1 whichever is odd. [From Max Alekseyev (maxale(AT)gmail.com), Feb 06 2010]
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MAPLE
| m[x_] := Mod[x*Floor[Log[x]//N], 2] Do[s=m[n]+m[n+1]; s1=m[n+1]+m[n+2]; If[ !Equal[s1, s], Print[n]], {n, 1, 1000000}]
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CROSSREFS
| See also A004648, A072608, A072609, A072610, A072630.
Sequence in context: A155374 A155272 A092053 * A002714 A126361 A069005
Adjacent sequences: A072627 A072628 A072629 * A072631 A072632 A072633
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Jun 28 2002
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EXTENSIONS
| More terms from Max Alekseyev (maxale(AT)gmail.com), Feb 06 2010
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