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 A249894 a(n+1) is next smallest square not divisible by 10 beginning with a(n), initial term is 3. 5
 3, 36, 361, 361201, 36120142809, 3612014280924268428225, 361201428092426842822525044572369542546150009 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Hiroaki Yamanouchi, Table of n, a(n) for n = 1..10 PROG (PARI) a(n)=k=n; s=1; while(s<5*10^7, if(s%10, if(s^2\(10^(#Str(s^2)-#Str(k)))==k, print1(s^2, ", "); k=s^2)); s++) a(3) (Python) def f(x): ..print(x, end=', ') ..n = x ..s = 1 ..while s < 10**7: ....if s % 10: ......S = str(s**2) ......if S.startswith(str(n)): ........print(s**2, end=', ') ........n = s**2 ....s += 1 f(3) CROSSREFS Cf. A048559, A048561. Sequence in context: A055303 A274403 A068177 * A099670 A259131 A199258 Adjacent sequences:  A249891 A249892 A249893 * A249895 A249896 A249897 KEYWORD nonn,base AUTHOR Derek Orr, Nov 08 2014 EXTENSIONS a(7) corrected by Hiroaki Yamanouchi, Nov 17 2014 STATUS approved

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Last modified May 28 18:24 EDT 2022. Contains 354122 sequences. (Running on oeis4.)