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A024254 Expansion of sin(sin(x)^2)/2. 0
0, 1, -4, -44, 3296, -125744, 2079296, 275799616, -47379887104, 4774911867136, -253451637781504, -33811598641040384, 15217039844307869696, -3403238497314405330944, 497468943189707788599296 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..14.

MATHEMATICA

Sin[ Sin[ x ]^2 ]/2 (* Even Part *)

CROSSREFS

Cf. A009486.

Sequence in context: A243221 A238816 A327196 * A167781 A173327 A075029

Adjacent sequences:  A024251 A024252 A024253 * A024255 A024256 A024257

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 1997

STATUS

approved

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Last modified May 28 17:37 EDT 2020. Contains 334684 sequences. (Running on oeis4.)