id:A055436 - OEIS Search Results

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Concatenation of n^2 and n.

+0
5

11, 42, 93, 164, 255, 366, 497, 648, 819, 10010, 12111, 14412, 16913, 19614, 22515, 25616, 28917, 32418, 36119, 40020, 44121, 48422, 52923, 57624, 62525, 67626, 72927, 78428, 84129, 90030, 96131, 102432, 108933, 115634, 122535, 129636 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) =n^2*floor[log10(n)+1]+n`
	CROSSREFS	`Cf. A053061, a(n)=A055437(n) if 1<=n<10, a(n)=A055438(n) if 10<=n<100.` `Sequence in context: A063152 A101985 A055437 this_sequence A062517 A027978 A050489` `Adjacent sequences: A055433 A055434 A055435 this_sequence A055437 A055438 A055439`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), May 18 2000`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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