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A272655
Numbers whose decimal expansion is an abelian square.
4
11, 22, 33, 44, 55, 66, 77, 88, 99, 1001, 1010, 1111, 1212, 1221, 1313, 1331, 1414, 1441, 1515, 1551, 1616, 1661, 1717, 1771, 1818, 1881, 1919, 1991, 2002, 2020, 2112, 2121, 2222, 2323, 2332, 2424, 2442, 2525, 2552, 2626, 2662, 2727, 2772, 2828, 2882, 2929, 2992
OFFSET
1,1
COMMENTS
Decimal numbers of the form uv where the decimal digits of v are some permutation of the decimal digits of u.
EXAMPLE
12344132 is a member because v = 4132 is a permutation of u = 1234.
PROG
(Python)
from sympy.utilities.iterables import multiset_permutations
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
CROSSREFS
Sequence in context: A226468 A283871 A240927 * A333440 A056524 A110745
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, May 14 2016
EXTENSIONS
More terms from Chai Wah Wu, May 15 2016
STATUS
approved