OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Gelfand's Question
FORMULA
EXAMPLE
1, 512, 19683, 262144, 1953125, 10077696, 40353607, 134217728, 387420489, 1000000000, ...
MAPLE
idd:= n -> floor(n/10^ilog10(n)):
seq(idd(n^9), n=2..100); # Robert Israel, Jan 28 2016
MATHEMATICA
Table[IntegerDigits[n^9][[1]], {n, 120}] (* Harvey P. Dale, Aug 25 2023 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Eric W. Weisstein, Aug 16 2004
STATUS
approved