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A106838 Numbers n such that n, n+1 and n+2 have odd part of form 4k+3. 3
22, 46, 54, 86, 94, 110, 118, 150, 174, 182, 190, 214, 222, 238, 246, 278, 302, 310, 342, 350, 366, 374, 382, 406, 430, 438, 446, 470, 478, 494, 502, 534, 558, 566, 598, 606, 622, 630, 662, 686, 694, 702, 726, 734, 750, 758, 766, 790, 814, 822, 854, 862 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Either of form 2a(m)+2 or 32k+22, k>=0,0<m<n.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

EXAMPLE

22/2=11 is 3 mod 4 and so is 23 and 24/8=3, thus 22 is in sequence.

MATHEMATICA

opm4[n_]:=Mod[n/2^IntegerExponent[n, 2], 4]; Flatten[Position[Partition[ Table[opm4[n], {n, 1000}], 3, 1], {3, 3, 3}]] (* Harvey P. Dale, Feb 01 2014 *)

CROSSREFS

Cf. A091067, A106837, A106841.

Equals -2 + 8 * A091067.

Sequence in context: A041962 A041964 A041966 * A190614 A281187 A158862

Adjacent sequences:  A106835 A106836 A106837 * A106839 A106840 A106841

KEYWORD

nonn

AUTHOR

Ralf Stephan, May 03 2005

STATUS

approved

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Last modified June 20 17:27 EDT 2019. Contains 324234 sequences. (Running on oeis4.)