A332905 Decimal expansion of Sum_{p prime, k>=1} 1 / 2^(p^k).

4, 8, 3, 0, 5, 7, 1, 8, 1, 1, 2, 5, 9, 0, 9, 5, 6, 4, 9, 3, 2, 1, 6, 9, 7, 9, 8, 5, 2, 5, 6, 0, 3, 8, 8, 4, 7, 9, 3, 2, 6, 0, 0, 7, 4, 3, 5, 4, 8, 9, 4, 9, 0, 6, 2, 8, 2, 6, 0, 8, 5, 6, 9, 9, 9, 1, 1, 3, 8, 6, 2, 6, 0, 5, 0, 6, 9, 3, 1, 1, 7, 1, 0, 3, 5, 5, 9, 2, 2, 2, 3, 4, 1, 7, 9, 5, 3, 6, 3, 6

Offset: 0

Author

Ilya Gutkovskiy, Mar 10 2020

Keywords

• nonn
• cons

Comments

Prime power constant: binary expansion is the characteristic function of prime powers (A069513).

Examples

			0.48305718112590956493... = (0.0111101110...)_2.
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Crossrefs

Cf. A051006, A069513, A246655, A333182.