A043060 a(n)=(s(n)+5)/7, where s(n)=n-th base 7 palindrome that starts with 2.

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

Offset

1,2

Links

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

Crossrefs

Sequence in context: A323499 A332961 A012634 * A029476 A154317 A291122

Adjacent sequences: A043057 A043058 A043059 * A043061 A043062 A043063

Keyword

nonn,base

Author

Clark Kimberling

Status

approved