cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A272655 Numbers whose decimal expansion is an abelian square.

Original entry on oeis.org

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

Views

Author

N. J. A. Sloane, May 14 2016

Keywords

Comments

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

Examples

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

Crossrefs

Programs

  • 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