A187208 - OEIS

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A187208

Numbers such that the last of the absolute differences of divisors is 1.

1, 2, 4, 8, 12, 16, 20, 32, 36, 48, 64, 80, 108, 112, 128, 156, 192, 204, 220, 252, 256, 260, 272, 304, 320, 324, 368, 396, 448, 476, 484, 512, 544, 608, 656, 660, 688, 768, 972, 1008, 1024, 1044, 1120, 1184, 1248, 1280, 1300, 1332, 1476, 1764, 1792, 1908 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Numbers n such that A187203(n) = 1.` `A000079 is a subsequence (powers of 2). [Reinhard Zumkeller, Aug 02 2011]`
	LINKS	`Reinhard Zumkeller, Table of n, a(n) for n = 1..1000`
	PROG	`(Haskell)` `import Data.List (elemIndices)` `a187208 n = a187208_list !! (n-1)` `a187208_list = map (+ 1) $ elemIndices 1 $ map a187203 [1..]` `-- Reinhard Zumkeller, Aug 02 2011`
	CROSSREFS	`Cf. A027750, A187202, A187203, A187204, A187205.` `Sequence in context: A160742 A160736 A118030 * A256409 A256403 A308013` `Adjacent sequences: A187205 A187206 A187207 * A187209 A187210 A187211`
	KEYWORD	`nonn`
	AUTHOR	`Omar E. Pol, Aug 01 2011`
	STATUS	`approved`

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Last modified April 17 02:26 EDT 2021. Contains 343059 sequences. (Running on oeis4.)