OFFSET
0,1
COMMENTS
LINKS
Diophante, A1945 - Concaténations en tous genres (in French).
Richard Hoshino, Astonishing Pairs of Numbers, Crux Mathematicorum with Mathematical Mayhem 27:1 (2001), pp. 39-44.
Index entries for linear recurrences with constant coefficients, signature (11,-10).
FORMULA
EXAMPLE
a(0) = (16-1)/3 = 5 and Sum_{j=1..5} = 15.
a(1) = (160-1)/3 = 53 and Sum_{j=13..53} = 1353.
a(2) = (1600-1)/3 = 533 and Sum_{j=133..533} = 133533.
MAPLE
Data := seq((16*10^n-1)/3, n = 0..21);
MATHEMATICA
Table[(16*10^n - 1)/3, {n, 0, 21}] (* Amiram Eldar, Jan 29 2022 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Bernard Schott, Jan 28 2022
STATUS
approved