A192416 The sequence obtained from A005117 (the squarefree numbers) by the transformation "forming" as defined in A191612.

1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 15, 16, 18, 20, 22, 23, 24, 27, 30, 31, 32, 34, 35, 36, 38, 39, 40, 42, 43, 45, 47, 48, 52, 54, 56, 58, 59, 60, 62, 63, 66, 67, 68, 70, 71, 72, 74, 75, 78, 79, 81, 83, 84, 86, 87, 88, 90, 92, 94

Offset

1,2

Comments

See A191612 for the definition of the transformation which maps A005117 to this sequence here.

Conjecture: a(n) is also a "totally formed" sequence.

Links

Table of n, a(n) for n=1..59.

Example

a(10) = 14 because 14 is the only integer larger than 13 = A005117(9) and smaller than or equal to A005117(10) = 14 and simultaneously a multiple of the difference A005117(10) - A005117(9) = 1.

Crossrefs

Sequence in context: A191991 A369138 A257047 * A026468 A263015 A056176

Adjacent sequences: A192413 A192414 A192415 * A192417 A192418 A192419

Keyword

nonn

Author

Jaroslav Krizek, Oct 16 2011

Status

approved