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A249805 a(n+1) is the next smallest nontrivial cube beginning with a(n), initial term is 5. 1
5, 512, 5124031424, 5124031424891652800051720000001 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(5) is a 94-digit number. - Jon E. Schoenfield, Dec 04 2014
LINKS
Jon E. Schoenfield, Table of n, a(n) for n = 1..7
PROG
(Python)
def f(x):
..n = x
..s = 1
..while s < 10**7:
....if s % 10:
......S = str(s**3)
......if S.startswith(str(n)):
........print(s**3, end=', ')
........n = s**3
....s += 1
f(5)
(PARI) a(n)=k=n; s=1; while(s<10^7, if(s%10, if(s^3\(10^(#Str(s^3)-#Str(k)))==k, print1(s^3, ", "); k=s^3)); s++)
a(5)
CROSSREFS
Sequence in context: A317821 A318428 A318096 * A003394 A283632 A270963
KEYWORD
nonn,base
AUTHOR
Derek Orr, Dec 03 2014
EXTENSIONS
a(4) from Jon E. Schoenfield, Dec 04 2014
STATUS
approved

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Last modified February 24 17:05 EST 2024. Contains 370307 sequences. (Running on oeis4.)