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A127944 Partial sums of A093049. 1
0, 0, 0, 2, 3, 7, 11, 17, 21, 29, 37, 47, 56, 68, 80, 94, 105, 121, 137, 155, 172, 192, 212, 234, 254, 278, 302, 328, 353, 381, 409, 439, 465, 497, 529, 563, 596, 632, 668, 706, 742, 782, 822, 864, 905, 949, 993 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

FORMULA

a(n)=log_2(2^C(n+1,2)/denominator(C(2n,n)/4^n))=A000217(n)-A005187(n); a(n)=log_2(A127943);

CROSSREFS

Sequence in context: A045323 A161185 A155141 * A045324 A140460 A045325

Adjacent sequences:  A127941 A127942 A127943 * A127945 A127946 A127947

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Feb 08 2007

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.