OFFSET
0,2
COMMENTS
a(n) >= n.
a(n) >= a(n-1). - Daniel Leary, Aug 21 2016
LINKS
Ivan Panchenko, Table of n, a(n) for n = 0..1000
FORMULA
a(0)=1, a(n)=(a(n-1) + n) XOR n, where XOR is the bitwise exclusive-OR operator.
EXAMPLE
a(5) = (a(4)+5) XOR 5 = (9+5) XOR 5 = 14 XOR 5 = 11.
PROG
(Python)
a=1
for i in range(1, 55):
print(a, end=', ')
a += i
a ^= i
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Alex Ratushnyak, Apr 27 2012
STATUS
approved