A278979 Number of initial digits of ternary Pi wherein the digit counts of ones and twos are exactly equal.

0, 14, 15, 18, 37, 38, 215, 218, 267, 280, 282, 290, 326, 328, 329, 331, 332, 333, 346, 347, 348, 350, 403, 404, 405, 425, 430, 431, 433, 435, 440, 454, 455, 456, 457, 458, 575, 577, 578, 579, 581, 590, 630, 631, 633, 634, 635, 637, 643, 644, 645, 646, 647, 648, 651, 652, 653, 654, 655, 658, 659, 663, 664, 666, 763, 770, 935, 937, 938, 950, 952, 1124

Offset

1,2

Links

Hans Havermann, Table of n, a(n) for n = 1..10000

Hans Havermann, Table of n, a(n) for n = 1..96619

Example

Ternary Pi is 10.01021101222201021100211...
0 is in the sequence because the first 0 digits contain 0 ones and 0 twos.
14 is in the sequence because the first 14 digits contain 5 ones and 5 twos.
15 is in the sequence because the first 15 digits contain 5 ones and 5 twos.

Crossrefs

Cf. A004602, A039624, A278976, A278977, A278978.

Sequence in context: A130687 A173687 A114962 * A220671 A136012 A038456

Adjacent sequences: A278976 A278977 A278978 * A278980 A278981 A278982

Keyword

nonn,base

Author

Hans Havermann, Dec 03 2016

Status

approved