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A043060 a(n)=(s(n)+5)/7, where s(n)=n-th base 7 palindrome that starts with 2. 0
1, 3, 15, 16, 17, 18, 19, 20, 21, 99, 107, 115, 123, 131, 139, 147, 687, 694, 701, 708, 715, 722, 729, 737, 744, 751, 758, 765, 772, 779, 787, 794, 801, 808, 815, 822, 829, 837, 844, 851, 858, 865, 872, 879, 887, 894, 901, 908 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Sequence in context: A074043 A120467 A012634 * A029476 A154317 A080705

Adjacent sequences:  A043057 A043058 A043059 * A043061 A043062 A043063

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 28 00:46 EDT 2017. Contains 285556 sequences.