A037288 - OEIS

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A037288

Replace 2n+1 by concatenation of its nontrivial divisors.

0, 0, 0, 0, 3, 0, 0, 35, 0, 0, 37, 0, 5, 39, 0, 0, 311, 57, 0, 313, 0, 0, 35915, 0, 7, 317, 0, 511, 319, 0, 0, 37921, 513, 0, 323, 0, 0, 351525, 711, 0, 3927, 0, 517, 329, 0, 713, 331, 519, 0, 391133, 0, 0, 357152135, 0, 0, 337, 0, 523, 391339, 717, 11, 341, 525, 0, 343, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,5`
	EXAMPLE	`Divisors of 15 are 1,3,5,15, so a(7)=35`
	CROSSREFS	`Sequence in context: A169777 A105786 A101192 * A160537 A009133 A180515` `Adjacent sequences: A037285 A037286 A037287 * A037289 A037290 A037291`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

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Last modified February 14 17:34 EST 2012. Contains 205644 sequences.