id:A135020 - OEIS Search Results

Search: id:A135020

Displaying 1-1 of 1 results found.

page 1

Each natural number is followed by its reversal.

+0
1

1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 1, 11, 11, 12, 21, 13, 31, 14, 41, 15, 51, 16, 61, 17, 71, 18, 81, 19, 91, 20, 2, 21, 12, 22, 22, 23, 32, 24, 42, 25, 52, 26, 62, 27, 72, 28, 82, 29, 92, 30, 3, 31, 13, 32, 23, 33, 33, 34, 43, 35, 53, 36, 63, 37, 73, 38, 83, 39, 93 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = (n+1)/2 for n = odd, a(n) = A004086(n/2) for n = even.`
	CROSSREFS	`Cf. A000027, A004086.` `Adjacent sequences: A135017 A135018 A135019 this_sequence A135021 A135022 A135023` `Sequence in context: A075355 A071542 A088461 this_sequence A072921 A140106 A034888`
	KEYWORD	`easy,nonn`
	AUTHOR	`Rolf Pleisch (r_pleisch(AT)gmx.ch), Feb 10 2008`

page 1

Search completed in 0.002 seconds

Last modified January 8 02:43 EST 2009. Contains 152824 sequences.

AT&T Labs Research