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A065612
Square roots of terms in A065611.
2
1, 189, 3, 8, 12276, 39, 41454, 62, 43, 30, 47, 689, 23, 342, 20, 647955, 786384, 60, 433, 1316871, 104, 41, 2358, 45, 31, 38, 31, 28, 203, 4682601, 5183910, 736, 53, 38012, 36, 8231895, 41, 9725265, 123, 11389131, 205, 50, 302, 102, 61, 46, 49, 108
OFFSET
0,2
COMMENTS
Square root of n^2 + [a special shortest square-sum] which is also square.
LINKS
FORMULA
a(n) = sqrt(A065611(n)) = sqrt(n^2 + A000330(A065610(n))).
EXAMPLE
n = 10: a(10) = sqrt(100 + A000330(A065610(10))) = sqrt(100 + (1 + 4 + ... + 18^2)) = sqrt(100 + (18*19*37/6)) = sqrt(100 + 2109) = 47.
PROG
(PARI) { for (n = 0, 500, s=n^2 + 1; k=1; while (!issquare(s), k++; s+=k^2); write("b065612.txt", n, " ", sqrtint(s)) ) } \\ Harry J. Smith, Oct 24 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Nov 07 2001
STATUS
approved