Sequences
which I have corrected in the OEIS
The OEIS is the best
resource for integer sequences on the internet and is maintained and presided
over by Neil Sloane with the assistance of an editorial panel of around 70
mathematicians and computer programmers. It currently contains around 200000
sequences, and those listed below are ones that ‘slipped through the net’ and
which I corrected:
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Units digits of the
perfect numbers – a(20) corrected |
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a(n) = 1 unless n
is a prime or prime power, in which case a(n) = the prime in question (closed
form in terms of the binomial coefficients corrected) |
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Hypotenuses of more
than one Pythagorean triangle (typo corrected) |
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Possible bases for
Pepin’s primality test for Fermat numbers (incorrect reference to elite
primes removed) |
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Number of primitive
Pythagorean triangles with leg n. Incorrect comment (to the effect that the
members of this sequence were also the number of ways in which n could be
expressed as the difference of two coprime squares) removed |
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