A308072 - OEIS

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A308072

Numbers k such that k is the substring identical to the most significant digits of its base-9 representation.

0, 1, 2, 3, 4, 5, 6, 7, 8, 1066338786883726756382, 1066338787045067082685, 1066338805156287287066, 1066338805156287287067, 1066338805156287300050, 1066338805156301216066, 1066341132816741837214, 1070235882243468707818, 1070235882243470056412, 1070236076684636644063

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

OFFSET

1,3

COMMENTS

Numbers k whose base-9 representation begins with the same digits as k itself.

LINKS

Scott R. Shannon, Table of n, a(n) for n = 1..500

EXAMPLE

1066338786883726756382_10 = 10663387868837267563825_9, which also begins with '1066338786883726756382'.

PROG

(PARI) isok(n) = my(vb=digits(n, 9), vd=digits(n)); vd == vector(#vd, k, vb[k]); \\ Michel Marcus, May 17 2019

CROSSREFS