1,2

Table of n, a(n) for n=1..6.

The sequence (b(i)[1], i=1,2,3,4,...) is 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, ... The present sequence gives the run lengths.

Cf. A318919.

Sequence in context: A137965 A129695 A110521 * A167892 A144498 A201368

Adjacent sequences: A318917 A318918 A318919 * A318921 A318922 A318923

nonn,base,more

N. J. A. Sloane, Sep 06 2018

approved