A025219 a(n) = [ 2nd elementary symmetric function of {sqrt(k+1)} ], k = 1,2,...,n.

2, 8, 20, 38, 64, 99, 145, 203, 274, 360, 462, 581, 719, 877, 1056, 1258, 1484, 1735, 2013, 2319, 2655, 3021, 3419, 3850, 4317, 4819, 5359, 5937, 6556, 7216, 7918, 8665, 9457, 10296, 11183, 12119, 13106, 14145, 15237, 16385, 17588, 18849, 20168, 21548, 22988

Offset

2,1

Links

Table of n, a(n) for n=2..46.

Crossrefs

Sequence in context: A130238 A038460 A077588 * A278212 A032767 A294869

Adjacent sequences: A025216 A025217 A025218 * A025220 A025221 A025222

Keyword

nonn

Author

Clark Kimberling

Status

approved