A333778 Fixed points of A333776.

0, 1, 2, 3, 4, 7, 8, 10, 15, 16, 29, 31, 32, 36, 42, 57, 63, 64, 86, 113, 127, 128, 136, 170, 225, 251, 255, 256, 292, 338, 449, 477, 499, 511, 512, 528, 588, 674, 682, 897, 949, 995, 1023, 1024, 1172, 1346, 1390, 1793, 1849, 1893, 1987, 2039, 2047, 2048, 2080

Offset: 1

Author

Rémy Sigrist, Apr 05 2020

Keywords

• nonn
• base

Comments

This sequence contains A000079, A000225.

Crossrefs

Cf. A000079, A000225, A333776, A333777.

Programs

PARI

is(n, base=2) = { my (d=digits(n, base), t=[]); forstep (k=#d, 1, -1, if (d[k], t=Vecrev(t);); t=concat(d[k], t)); n==fromdigits(t, base) }