id:A036057 - OEIS Search Results

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Friedman numbers: can be written in a nontrivial way using their digits and the operations + - * / ^ and concatenation of digits (but not of results).

+0
6

25, 121, 125, 126, 127, 128, 153, 216, 289, 343, 347, 625, 688, 736, 1022, 1024, 1206, 1255, 1260, 1285, 1296, 1395, 1435, 1503, 1530, 1792, 1827, 2048, 2187, 2349, 2500, 2501, 2502, 2503, 2504, 2505, 2506, 2507, 2508, 2509, 2592, 2737, 2916, 3125, 3159 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Erich Friedman, Friedman Numbers` `Index entries for similar sequences`
	EXAMPLE	`E.g. 153=51*3, 736=3^6+7. Not 26 = 2 6, that's trivial.`
	CROSSREFS	`Cf. A080035, A156954, A046469.` `Sequence in context: A124953 A126412 A078815 this_sequence A083509 A031151 A016970` `Adjacent sequences: A036054 A036055 A036056 this_sequence A036058 A036059 A036060`
	KEYWORD	`base,nonn`
	AUTHOR	`Erich Friedman (erich.friedman(AT)stetson.edu)`
	EXTENSIONS	`Corrected broken URL. Added cross-reference to A156954 R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 20 2009`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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