A051480 Run lengths in binary expansion of Pi.

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

Offset: 1

Author

H. Tracy Hall (hthall(AT)math.berkeley.edu)

Keywords

• base
• nonn

Examples

			The binary expansion of Pi is: 11. 00 1 00 1 0000 111111 0 ...
		

Links

• Paolo Xausa, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000796, A004601.

Programs

Mathematica

Map[Length, Most[Split[First[RealDigits[Pi, 2, 300]]]]] (* Paolo Xausa, Jul 30 2024 *)