A043070 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A043070

a(n)=(s(n)+2)/8, where s(n)=n-th base 8 palindrome that starts with 6 (in base 8), written in decimal digits.

1, 7, 49, 50, 51, 52, 53, 54, 55, 56, 385, 394, 403, 412, 421, 430, 439, 448, 3073, 3081, 3089, 3097, 3105, 3113, 3121, 3129, 3138, 3146, 3154, 3162, 3170, 3178, 3186, 3194, 3203, 3211, 3219, 3227, 3235, 3243, 3251, 3259

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..42.

MATHEMATICA

(#+2)/8&/@Select[Range[30000], IntegerDigits[#, 8][[1]]==6&&IntegerDigits[#, 8] == Reverse[ IntegerDigits[#, 8]]&] (* Harvey P. Dale, May 07 2022 *)

CROSSREFS

Sequence in context: A330329 A115589 A014390 * A083930 A178367 A036132

Adjacent sequences: A043067 A043068 A043069 * A043071 A043072 A043073

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

EXTENSIONS

Definition clarified by Harvey P. Dale, May 07 2022

STATUS

approved