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A262678
a(n) = n - A262690(n), where A262690(n) = largest square k <= n such that A002828(n-k) = A002828(n)-1.
3
0, 0, 1, 2, 0, 1, 2, 3, 4, 0, 1, 2, 8, 4, 5, 6, 0, 1, 9, 10, 4, 5, 13, 14, 8, 0, 1, 2, 3, 4, 5, 6, 16, 8, 9, 10, 0, 1, 2, 3, 4, 16, 17, 18, 8, 9, 10, 11, 32, 0, 1, 2, 16, 4, 5, 6, 20, 8, 9, 10, 11, 25, 13, 14, 0, 1, 2, 18, 4, 5, 34, 22, 36, 9, 25, 26, 40, 13, 29, 30, 16, 0, 1, 2, 20, 4, 5, 6, 52, 25, 9, 10, 11, 29, 13, 14, 32, 16, 49, 18, 0
OFFSET
0,4
LINKS
FORMULA
a(n) = n - A262690(n).
PROG
(Scheme) (define (A262678 n) (- n (A262690 n)))
CROSSREFS
Cf. also A053186.
Sequence in context: A255120 A218601 A350603 * A238794 A135317 A332663
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 03 2015
STATUS
approved