A234020 Offsets from the middle point of each row of A233270 to the nearest point containing a maximum value of that range.

0, 0, 0, 0, 1, 1, 3, 0, 5, 0, 0, 33, 72, 140, 267, 502, 954, 1771, 3355

Offset: 1

Author

Antti Karttunen, Dec 29 2013

Keywords

• nonn

Comments

Please see the graph of A233270. Iff a(n)=0, A234018(n) = A234019(n).

Seems to grow faster than A233274. Is the ratio a(n)/A233274(n) converging to some limit?

Crossrefs

Cf. A233268, A233270, A234018, A234019, A233274.

Programs

Scheme

(define (A234020 n) (let ((middle (A233268 n))) (let loop ((i middle) (m 0) (maxp middle)) (cond ((zero? (A233270 i)) (- middle maxp)) ((> (abs (A233270 i)) m) (loop (- i 1) (abs (A233270 i)) i)) (else (loop (- i 1) m maxp))))))