A272655 Numbers whose decimal expansion is an abelian square.
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
Examples
12344132 is a member because v = 4132 is a permutation of u = 1234.
Links
- Chai Wah Wu, Table of n, a(n) for n = 1..10000
Programs
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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
Extensions
More terms from Chai Wah Wu, May 15 2016
Comments