A244219 The starting points of runs of consecutive terms with the same parity in A014418 (n represented in Greedy Catalan Base).

0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 76, 77, 78, 79, 81

Offset

0,3

Comments

The starting points of runs in A244220 and A244221.

Thus, after zero, the positions where A014418(n-1) <> A014418(n) modulo 2. (Same is true for A244161).

One more than the partial sums of A244226.

Links

Antti Karttunen, Table of n, a(n) for n = 0..4121

Formula

a(0) = 0, a(n) = 1 + A244218(n-1).

Prog

(Scheme) (define (A244219 n) (if (zero? n) 0 (+ 1 (A244218 (- n 1)))))

Crossrefs

Cf. A014418, A244218, A244161, A244220, A244221, A244226.

Sequence in context: A039168 A059589 A153287 * A039258 A187968 A176253

Adjacent sequences: A244216 A244217 A244218 * A244220 A244221 A244222

Keyword

nonn

Author

Antti Karttunen, Jun 23 2014

Status

approved