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A077406
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In base 3: n sets a new record for the number of Reverse and Add! steps needed to reach a palindrome starting with n.
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1
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0, 3, 5, 15, 17, 53, 1466, 9717, 32857, 37340, 37366, 37367, 531773, 1596329
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| RECORDS transform of A077402. - Base 3 analogue of A066144 (base 2), A075686 (base 4) and A065198 (base 10). Integers like 103, for which a palindrome is (presumably) never reached (cf. A077404), are of course disregarded. A077407 gives the corresponding records.
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LINKS
| Index entries for sequences related to Reverse and Add!
N. J. A. Sloane, Transforms
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EXAMPLE
| Starting with 15, 3 Reverse and Add! steps are needed to reach a palindrome; starting with n < 15, less (at most 2) steps are needed.
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CROSSREFS
| Cf. A065198, A066144, A075686, A077402, A077404, A077407.
Sequence in context: A045544 A001317 A053576 * A054432 A016043 A077403
Adjacent sequences: A077403 A077404 A077405 * A077407 A077408 A077409
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KEYWORD
| base,more,nonn
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AUTHOR
| Klaus Brockhaus. (klaus-brockhaus(AT)t-online.de), Nov 05 2002
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EXTENSIONS
| a(14) from Sean A. Irvine (sairvin(AT)xtra.co.nz), Apr 19 2010
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