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 A037284 Replace n with concatenation of its odd divisors >1. 5
 0, 0, 3, 0, 5, 3, 7, 0, 39, 5, 11, 3, 13, 7, 3515, 0, 17, 39, 19, 5, 3721, 11, 23, 3, 525, 13, 3927, 7, 29, 3515, 31, 0, 31133, 17, 5735, 39, 37, 19, 31339, 5, 41, 3721, 43, 11, 3591545, 23, 47, 3, 749, 525, 31751 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 MATHEMATICA Array[FromDigits[Flatten[IntegerDigits/@Rest[Select[Divisors[#], OddQ]]]]&, 60] (* Harvey P. Dale, Mar 03 2014 *) PROG (Haskell) a037284 n    | a209229 n == 1 = 0    | otherwise      = read \$ concat \$ (map show) \$ tail \$ a182469_row n -- Reinhard Zumkeller, May 01 2012] (Python) from sympy import divisors def a(n):   odd_divisors_gt1 = [d for d in divisors(n)[1:] if d%2 == 1]   if len(odd_divisors_gt1) == 0: return 0   else: return int("".join(str(d) for d in odd_divisors_gt1)) print([a(n) for n in range(1, 52)]) # Michael S. Branicky, Dec 31 2020 CROSSREFS Cf. A182469, A209229, A037277, A037283, A037285. Sequence in context: A005069 A284233 A326990 * A225058 A002123 A276408 Adjacent sequences:  A037281 A037282 A037283 * A037285 A037286 A037287 KEYWORD nonn,base,easy AUTHOR EXTENSIONS a(36) corrected by Reinhard Zumkeller, May 01 2012 STATUS approved

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Last modified April 15 04:41 EDT 2021. Contains 342975 sequences. (Running on oeis4.)