login
A134421
Partial sums of A134021.
2
1, 2, 4, 6, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 39, 43, 47, 51, 55, 59, 63, 67, 71, 75, 79, 83, 87, 91, 95, 99, 103, 107, 111, 115, 119, 123, 127, 131, 135, 139, 143, 148, 153, 158, 163, 168, 173, 178, 183, 188, 193, 198, 203, 208, 213, 218, 223, 228, 233, 238, 243
OFFSET
0,2
COMMENTS
a(n) = if n=0 then A134021(0) else a(n-1)+A134021(n);
n = Sum(A059095(a(n)-2-k)*3^k: 0<=k < A134021(n)), for n>0.
CROSSREFS
Sequence in context: A077473 A200738 A129896 * A092777 A186380 A006463
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 25 2007
STATUS
approved