A052057 - OEIS

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A052057

Numbers n such that decimal expansion of 2^n contains no palindromic substring except single digits.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21, 22, 29, 37, 54 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	EXAMPLE	`Record number is 2^54 = 18014398509481984.`
	CROSSREFS	`Cf. A000079, A050723, A052058, A052059.` `Sequence in context: A028823 A074739 A098314 * A005496 A052060 A084688` `Adjacent sequences: A052054 A052055 A052056 * A052058 A052059 A052060`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jan 15 2000.`
	EXTENSIONS	`Probably finite. Next term > 1170.`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.