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

Author

Antti Karttunen, Jun 23 2014

Keywords

• nonn

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

Crossrefs

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

Programs

Scheme

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

Formula

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