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A062033
Binary expansion of n does not contain 1-bits at even positions. Integers whose base 4 representation consists of only 0's and 2s.
3
0, 10, 1000, 1010, 100000, 100010, 101000, 101010, 10000000, 10000010, 10001000, 10001010, 10100000, 10100010, 10101000, 10101010, 1000000000, 1000000010, 1000001000, 1000001010, 1000100000, 1000100010, 1000101000, 1000101010, 1010000000, 1010000010, 1010001000
OFFSET
0,2
PROG
(Python)
def A062033(n): return int(bin(int(bin(n)[2:], 4))[2:])*10 # Chai Wah Wu, Aug 21 2023
CROSSREFS
Decimal representation is given in A062880.
Sequence in context: A168520 A200993 A365704 * A171500 A154027 A013715
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Jun 26 2001
EXTENSIONS
More terms from Chai Wah Wu, Aug 22 2023
STATUS
approved