A114745 a(1) = 1, a(2) = 3, a(n+1) = least number of the form k*(a(n-1)) - a(n), not included earlier.

1, 3, 2, 4, 6, 10, 8, 12, 20, 16, 24, 40, 32, 48, 80, 64, 96, 160, 128, 192, 320, 256, 384, 640, 512, 768, 1280, 1024, 1536, 2560, 2048, 3072, 5120, 4096, 6144, 10240, 8192, 12288, 20480, 16384, 24576, 40960, 32768, 49152, 81920, 65536, 98304, 163840

Offset

1,2

Comments

a(3n+4) = 2*a(3n+1)= 2^(n+2). a(3n+5) = 2*a(3n+2). = 3*2^(n+1). a(3n+6) = 2*a(3n+3). =5*2^(n). From a(4) on the terms match A114743.

Links

Table of n, a(n) for n=1..48.

Crossrefs

Cf. A114743, A114744.

Sequence in context: A019653 A240493 A095258 * A352915 A361401 A361379

Adjacent sequences: A114742 A114743 A114744 * A114746 A114747 A114748

Keyword

nonn

Author

Amarnath Murthy, Nov 15 2005

Extensions

More terms from R. J. Mathar, Aug 31 2007

Status

approved