A374002 Decimal expansion of the positive real root of x^6 - 2*x^5 + x^4 - x^2 + x - 1.

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

Offset: 1

Author

Paolo Xausa, Jun 25 2024

Keywords

• nonn
• cons

Comments

Eighth smallest Pisot-Vijayaraghavan number.

Examples

			1.561752067720297294702995364060723780790847286947...
		

Links

• Paolo Xausa, Table of n, a(n) for n = 1..10000
• Eric Weisstein's World of Mathematics, Pisot Number.
• Wikipedia, Pisot-Vijayaraghavan number.
• Index entries for algebraic numbers.

Crossrefs

Cf. A060006, A086106, A228777, A092526, A293508, A293509, A293557, A293506, A374003.

Programs

Mathematica

First[RealDigits[Root[#^6 - 2*#^5 + #^4 - #^2 + # - 1 &, 2], 10, 100]]