A272655 - OEIS

%I #10 May 15 2016 11:30:21

%S 11,22,33,44,55,66,77,88,99,1001,1010,1111,1212,1221,1313,1331,1414,

%T 1441,1515,1551,1616,1661,1717,1771,1818,1881,1919,1991,2002,2020,

%U 2112,2121,2222,2323,2332,2424,2442,2525,2552,2626,2662,2727,2772,2828,2882,2929,2992

%N Numbers whose decimal expansion is an abelian square.

%C Decimal numbers of the form uv where the decimal digits of v are some permutation of the decimal digits of u.

%H Chai Wah Wu, <a href="/A272655/b272655.txt">Table of n, a(n) for n = 1..10000</a>

%e 12344132 is a member because v = 4132 is a permutation of u = 1234.

%o (Python)

%o from sympy.utilities.iterables import multiset_permutations

%o A272655_list = [int(str(n)+''.join(s)) for n in range(1,100) for s in multiset_permutations(sorted(str(n)))] # _Chai Wah Wu_, May 15 2016

%Y Cf. A272653, A272654.

%K nonn,base

%O 1,1

%A _N. J. A. Sloane_, May 14 2016

%E More terms from _Chai Wah Wu_, May 15 2016