A272654 - OEIS

A272654

Binary words beginning with 1 which are abelian squares.

11, 1001, 1010, 1111, 100001, 100010, 100100, 101011, 101101, 101110, 110011, 110101, 110110, 111111, 10000001, 10000010, 10000100, 10001000, 10010011, 10010101, 10010110, 10011001, 10011010, 10011100, 10100011, 10100101, 10100110, 10101001, 10101010, 10101100

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OFFSET

1,1

COMMENTS

Binary strings of the form uv, where u begins with 1 and v is some permutation of u.

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..10000

PROG

(Python)

from sympy.utilities.iterables import multiset_permutations

A272654_list = [int(b+''.join(s)) for b in (bin(n)[2:] for n in range(1, 100)) for s in multiset_permutations(sorted(b))] # Chai Wah Wu, May 15 2016

CROSSREFS