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A276338
a(n) = A276333(n) * A001563(1+A258198(n)).
2
0, 4, 8, 12, 18, 18, 18, 18, 36, 36, 36, 36, 54, 54, 54, 54, 72, 72, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 288, 384
OFFSET
0,2
COMMENTS
a(n) is obtained by first replacing with zeros all other digits except the leftmost (the most significant) in the greedy A001563-base representation of n (A276326), then appending an extra zero to the right, then converting back to decimal.
An auxiliary function for computing A276340.
LINKS
FORMULA
a(n) = A276333(n) * A001563(1+A258198(n)).
Other identities. For all n >= 0:
a(n) = A276340(A276334(n)).
PROG
(Scheme) (define (A276338 n) (* (A001563 (+ 1 (A258198 n))) (A276333 n)))
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Sep 01 2016
STATUS
approved