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A071573
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a(1) = 1; a(n) = a(n-1)-th nontotient number.
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0
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1, 14, 114, 594, 2532, 9658, 34066, 113930, 366358, 1141614, 3465398, 10291022, 29988178, 85961454, 242870564, 677436550, 1867877934
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(3)=114 is the 14_th = a(2)_th term in A005277.
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MATHEMATICA
| a = Table[0, {10^6}]; Do[b = EulerPhi[n]/2; If[b < 10^6 + 1, a[[b]] = 1], {n, 1, 2 10^7}]; b = Select[ Range[10^6], a[[ # ]] == 0 &]; c = 1; Do[ Print[c]; c = 2b[[c]], {n, 0, 7}]
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CROSSREFS
| Cf. A005277, A072415.
Sequence in context: A044727 A199251 A199196 * A076429 A027204 A200037
Adjacent sequences: A071570 A071571 A071572 * A071574 A071575 A071576
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KEYWORD
| more,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 20 2002
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EXTENSIONS
| Changed offset to match formula and a(11)-a(17) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Feb 12 2011
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