id:A086457 - OEIS Search Results

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Both n and n^2 have the same initial digit and also n and n^2 have the same final digit when expressed in base 10.

+0
3

0, 1, 10, 11, 95, 96, 100, 101, 105, 106, 110, 111, 115, 116, 120, 121, 125, 126, 130, 131, 135, 136, 140, 141, 895, 896, 950, 951, 955, 956, 960, 961, 965, 966, 970, 971, 975, 976, 980, 981, 985, 986, 990, 991, 995, 996, 1000, 1001, 1005, 1006, 1010, 1011 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`All terms of A045953 appear in this sequence.`
	FORMULA	`left$(str$(n), 1) = left$(str$(n^2), 1) AND right$(str$(n), 1) = right$(str$(n^2), 1)`
	EXAMPLE	`a(12) = 115 appears in the sequence because 115*115 = 13225.`
	CROSSREFS	`Cf. A045953, A086458.` `Adjacent sequences: A086454 A086455 A086456 this_sequence A086458 A086459 A086460` `Sequence in context: A122602 A037958 A041214 this_sequence A046851 A045953 A136830`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Jul 20 2003`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research