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 A243976 a(n) is the repeating digit in 3^A243975(n). 0
 3, 6, 7, 3, 8, 8, 6, 5, 7, 8, 3, 4, 1, 3, 1, 7, 7, 7, 5, 4, 9, 8, 9, 1, 9, 6, 3, 2, 7, 0, 3, 3, 8, 1, 8, 2, 7, 7, 3, 0, 3, 5, 7, 0, 0, 3, 9, 7, 1, 7, 2, 9, 6, 1, 1, 3, 0, 9, 3, 0, 0, 9, 5, 9, 5, 0, 1, 6, 6, 2, 0, 9, 2, 1, 5, 6, 4, 6, 8, 6, 9, 9, 3, 2, 7, 7, 7, 0, 3, 1, 8, 5, 3, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS In case of a tie, choose the smaller integer. LINKS EXAMPLE 3^A243975(4) = 3^29 = 68630377364883 contains four 3's. Thus A243975(4) = 29 and since the repeating digit is 3, a(4) = 3. PROG (Python) def b(): ..n = 1 ..k = 1 ..while k < 50000: ....st = str(3**k) ....if len(st) >= n: ......for a in range(10): ........count = 0 ........for i in range(len(st)): ..........if st[i] == str(a): ............count += 1 ........if count == n: ..........print(a, end=', ') ..........n += 1 ..........k = 0 ..........break ......k += 1 ....else: ......k += 1 b() CROSSREFS Cf. A243975. Sequence in context: A137427 A177035 A055102 * A198457 A264921 A098990 Adjacent sequences:  A243973 A243974 A243975 * A243977 A243978 A243979 KEYWORD nonn,base AUTHOR Derek Orr, Jun 16 2014 STATUS approved

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Last modified September 16 12:34 EDT 2019. Contains 327098 sequences. (Running on oeis4.)