id:A046433 - OEIS Search Results

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3 steps needed to reach a prime under 'Sum of digits raised to its digits powers' procedure.

+0
1

7, 26, 62, 126, 147, 148, 158, 162, 174, 184, 185, 206, 216, 248, 260, 261, 266, 284, 377, 399, 407, 408, 417, 418, 428, 470, 471, 480, 481, 482, 508, 518, 580, 581, 599, 602, 612, 620, 621, 626, 662, 704, 714, 737, 740, 741, 773, 804, 805, 814, 815, 824 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(n)=26 -> 2^2+6^6 = 46660 -> 4^4+6^6+6^6+6^6+0^0 = 140225 -> 1^1+4^4+0^0+2^2+2^2+5^5 = 3391 and prime.`
	CROSSREFS	`Cf. A046431.` `Sequence in context: A063159 A059376 A049453 this_sequence A128972 A135300 A024001` `Adjacent sequences: A046430 A046431 A046432 this_sequence A046434 A046435 A046436`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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