A278978 Number of initial digits of ternary Pi wherein the digit counts of zeros and twos are exactly equal.

0, 1, 13, 15, 16, 18, 19, 20, 31, 32, 127, 146, 147, 151, 152, 154, 155, 183, 184, 188, 4852, 4854, 4855, 5375, 5490, 5493, 5539, 5540, 5542, 5547, 5624, 5625, 5628, 5629, 5649, 5652, 5657, 5659, 5661, 5662, 5664, 5667, 5669, 5670, 5671, 5672, 5674, 5681, 5685, 5687, 5688, 5696, 5701, 5703, 5718, 5731, 5733, 5735, 5738, 5827, 5829, 5830

Offset

1,3

Links

Hans Havermann, Table of n, a(n) for n = 1..7441

Example

Ternary Pi is 10.01021101222201021100211...
0 is in the sequence because the first 0 digits contain 0 zeros and 0 twos.
15 is in the sequence because the first 15 digits contain 5 zeros and 5 twos.
16 is in the sequence because the first 16 digits contain 5 zeros and 5 twos.

Crossrefs

Cf. A004602, A039624, A278975, A278977, A278979.

Sequence in context: A070640 A043657 A043702 * A212908 A180642 A176717

Adjacent sequences: A278975 A278976 A278977 * A278979 A278980 A278981

Keyword

nonn,base

Author

Hans Havermann, Dec 03 2016

Status

approved