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A182247
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a(0)=0, a(n) = (a(n-1) + n) OR n.
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2
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0, 1, 3, 7, 15, 21, 31, 39, 47, 57, 75, 95, 111, 125, 143, 159, 191, 209, 243, 279, 319, 341, 383, 407, 447, 473, 507, 543, 575, 605, 639, 671, 703, 737, 803, 871, 943, 1013, 1087, 1127, 1199, 1273, 1323, 1407, 1455, 1533
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OFFSET
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0,3
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LINKS
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FORMULA
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a(0)=0, a(n)=(a(n-1)+n) OR n, where OR is the bitwise logical inclusive-OR operator.
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MATHEMATICA
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nxt[{n_, a_}]:={n+1, BitOr[a+n+1, n+1]}; NestList[nxt, {0, 0}, 50][[All, 2]] (* Harvey P. Dale, Aug 16 2021 *)
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PROG
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(Python)
a=0
for i in range(1, 51):
print(a, end=', ')
a += i
a |= i
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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