# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a164095 Showing 1-1 of 1 %I A164095 #18 Jun 30 2023 01:03:39 %S A164095 5,6,10,12,20,24,40,48,80,96,160,192,320,384,640,768,1280,1536,2560, %T A164095 3072,5120,6144,10240,12288,20480,24576,40960,49152,81920,98304, %U A164095 163840,196608,327680,393216,655360,786432,1310720,1572864,2621440,3145728 %N A164095 a(n) = 2*a(n-2) for n > 2; a(1) = 5, a(2) = 6. %C A164095 Interleaving of A020714 and A007283 without initial term 3. %C A164095 Partial sums are in A164096. %C A164095 Binomial transform is A048655 without initial 1, second binomial transform is A161941 without initial 2, third binomial transform is A164037, fourth binomial transform is A161731 without initial 1, fifth binomial transform is A164038, sixth binomial transform is A164110. %H A164095 Vincenzo Librandi, Table of n, a(n) for n = 1..1000 %H A164095 Index entries for linear recurrences with constant coefficients, signature (0, 2). %F A164095 a(n) = A070876(n)/3. %F A164095 a(n) = (4-(-1)^n)*2^(1/4*(2*n-1+(-1)^n)). %F A164095 G.f.: x*(5+6*x)/(1-2*x^2). %t A164095 LinearRecurrence[{0,2},{5,6},50] (* or *) With[{nn=20},Riffle[NestList[ 2#&,5,nn],NestList[2#&,6,nn]]] (* _Harvey P. Dale_, Aug 15 2020 *) %o A164095 (Magma) [ n le 2 select n+4 else 2*Self(n-2): n in [1..40] ]; %Y A164095 Cf. A020714 (5*2^n), A007283 (3*2^n), A164096, A048655, A161941, A164037, A161731, A164038, A164110, A070876. %K A164095 nonn %O A164095 1,1 %A A164095 _Klaus Brockhaus_, Aug 10 2009 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE