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A276605 After a(0)=0, the first differences of A276603. 3
0, 1, 1, 2, 1, 1, 2, 2, 3, 1, 1, 2, 2, 2, 2, 3, 2, 3, 3, 2, 4, 1, 1, 2, 2, 2, 2, 3, 2, 3, 3, 2, 4, 3, 2, 4, 4, 2, 3, 3, 2, 4, 3, 2, 3, 4, 2, 4, 4, 5, 1, 1, 2, 2, 2, 2, 3, 2, 3, 3, 2, 4, 3, 2, 4, 4, 2, 3, 3, 2, 4, 3, 2, 3, 4, 2, 4, 4, 5, 3, 2, 3, 4, 2, 4, 4, 5, 4, 4, 5, 2, 3, 3, 2, 4, 3, 2, 3, 4, 2, 4, 4, 5, 3, 2, 3, 4, 2, 4, 4, 4, 4, 4, 5, 2, 4, 4, 4, 4, 4, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..6250

FORMULA

a(n) = A276604(n) / 2.

a(0) = 0; for n >= 1, a(n) = A276603(n) - A276603(n-1).

PROG

(Scheme, two alternatives)

(define (A276605 n) (/ (A276604 n) 2))

(define (A276605 n) (if (zero? n) n (- (A276603 n) (A276603 (- n 1)))))

CROSSREFS

Cf. A276603, A276604, A276623.

Sequence in context: A092332 A092334 A269971 * A047060 A050167 A047050

Adjacent sequences:  A276602 A276603 A276604 * A276606 A276607 A276608

KEYWORD

nonn,base

AUTHOR

Antti Karttunen, Sep 11 2016

STATUS

approved

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Last modified October 20 22:22 EDT 2021. Contains 348119 sequences. (Running on oeis4.)