[seqfan] A080150
israel at math.ubc.ca
israel at math.ubc.ca
Tue Aug 6 05:24:34 CEST 2019
A080150 has the Name Let m = Wonderful Demlo number A002477(n); a(n) = sum
of squares of digits of m.
But this does not at all match the Data:
1, 16, 81, 256, 625, 1296, 2401, 4096, 6561, 6724, 7225, 8100, 9409, 11236,
13689, 16900, 21025, 26244, 26569, 27556, 29241, 31684, 34969, 39204,
44521, 51076, 59049, 59536, 61009, 63504, 67081, 71824, 77841, 85264,
94249, 104976, 105625
For example, A002477(3) = 12321, and 1^2+2^2+3^2+2^2+1^2=19, not 81.
Instead, the Data are A080151(n)^2, as noted in the Comment (and also the
first Comment of A080151).
So, should we just change the Name to "a(k) = A080151(k)^2"?
Or is the current Name somehow a garbled version of some correct identity?
Cheers,
Robert
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