A030339 - OEIS

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A030339

(# 1's)-(# 0's) in first n terms of A003137.

1, 1, 2, 1, 2, 3, 4, 4, 4, 3, 3, 4, 4, 4, 5, 4, 3, 4, 3, 4, 5, 4, 4, 5, 6, 5, 6, 7, 8, 9, 10, 10, 11, 11, 10, 11, 11, 12, 13, 13, 13, 13, 12, 11, 11, 10, 11, 11, 10, 10, 10, 11, 10, 10, 11, 12, 12, 13, 13, 13, 13, 12, 12, 12, 13, 13, 13, 13, 14, 13

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

PROG

(Haskell)

a030339 n = a030339_list !! (n-1)

a030339_list = scanl1

(\u v -> u + fromEnum (v == 1) - fromEnum (v == 0)) a003137_list

-- Reinhard Zumkeller, Feb 21 2013

CROSSREFS