

A074235


Numbers that cannot be the larger leg of an integer right triangle.


3



1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 17, 18, 19, 22, 23, 25, 26, 27, 29, 31, 33, 34, 37, 38, 39, 41, 43, 46, 47, 49, 50, 51, 53, 54, 57, 58, 59, 61, 62, 65, 66, 67, 69, 71, 73, 74, 78, 79, 81, 82, 83, 85, 86, 87, 89, 93, 94, 95, 97, 98, 101, 102, 103, 106, 107, 109, 111
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OFFSET

1,2


COMMENTS

The possible values of larger leg of integer right triangle are in A009012.
A227481(a(n)) = 1.  Reinhard Zumkeller, Oct 11 2013


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000


EXAMPLE

5 is a member because a^2+5^2=c^2 has no solution for a<5, with integer a, c. 13 is a member because a^2+13^2=c^2 has no solution for a<13,with integer a, c.


PROG

(Haskell)
a074235 n = a074235_list !! (n1)
a074235_list = filter ((== 1) . a227481) [1..]
 Reinhard Zumkeller, Oct 11 2013


CROSSREFS

Cf. A009012.
Cf. A009023 (complement).
Sequence in context: A248565 A065896 A099308 * A325366 A192189 A285375
Adjacent sequences: A074232 A074233 A074234 * A074236 A074237 A074238


KEYWORD

nonn


AUTHOR

Zak Seidov, Sep 18 2002


STATUS

approved



