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Sequence of the Day for March 19
A119523: Decimal expansion of the van der Waerden–Ulam binary measure of the primes.
- 0.829365019702...
|
χp(n) |
The binary expansion of the van der Waerden–Ulam binary measure of the primes being obviously (see A010051)
0.1101010001010001010001000001010000010001010001...
The quaternary (base 4) expansion of the van der Waerden–Ulam binary measure of the primes being (see A??????)
0.31101101101001100101101...
In the quaternary expansion all the digits after the point, with the exception of the initial 3, are 0 or 1 since there is only one even prime.
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