A025074 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = A023532, t = A001950 (upper Wythoff sequence).

5, 7, 10, 13, 25, 31, 48, 56, 64, 71, 98, 108, 138, 153, 188, 204, 220, 235, 280, 297, 347, 368, 422, 446, 505, 531, 558, 584, 651, 680, 753, 785, 863, 896, 980, 1017, 1105, 1144, 1184, 1224, 1319, 1362, 1463, 1507, 1615, 1661, 1774, 1824, 1941, 1993, 2115, 2170, 2226

Offset

1,1

Links

Table of n, a(n) for n=1..53.

Crossrefs

Sequence in context: A089061 A093115 A020936 * A065503 A152001 A297000

Adjacent sequences: A025071 A025072 A025073 * A025075 A025076 A025077

Keyword

nonn

Author

Clark Kimberling

Status

approved