id:A117841 - OEIS Search Results

Search: id:A117841

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Start with 1 and repeatedly reverse the digits and add 10 to get the next term.

+0
3

1, 11, 21, 22, 32, 33, 43, 44, 54, 55, 65, 66, 76, 77, 87, 88, 98, 99, 109, 911, 129, 931, 149, 951, 169, 971, 189, 991, 209, 912, 229, 932, 249, 952, 269, 972, 289, 992, 309, 913, 329, 933, 349, 953, 369, 973, 389, 993, 409, 914, 429, 934, 449, 954, 469, 974, 489, 994, 509 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`This sequence (unlike A117828, say) never cycles.` `Comment from Martin Fuller, May 12 2006: The operation can never generate a trailing zero and so is reversible. So it loops only if it returns to the start, which is impossible.`
	LINKS	`N. J. A. Sloane, Sequences of RADD type`
	CROSSREFS	`Cf. A117830, A117828, A117816, A117817.` `Sequence in context: A108237 A084906 A118853 this_sequence A105956 A050718 A125164` `Adjacent sequences: A117838 A117839 A117840 this_sequence A117842 A117843 A117844`
	KEYWORD	`nonn,base`
	AUTHOR	`David Applegate (david(AT)research.att.com), May 05 2006`

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

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