login
A194714
Sum of all odd-indexed parts minus the sum of all even-indexed parts of all partitions of n, with the parts written in nondecreasing order.
7
1, 2, 3, 4, 5, 8, 9, 14, 18, 26, 32, 48, 57, 82, 102, 138, 169, 230, 278, 370, 450, 584, 709, 914, 1102, 1400, 1692, 2124, 2555, 3186, 3818, 4720, 5649, 6926, 8269, 10078, 11989, 14526, 17249, 20782, 24603, 29508, 34843, 41600, 49008, 58258, 68468, 81098
OFFSET
1,2
COMMENTS
It appears that A066897 is also another version of this sequence but with the parts written in nonincreasing order.
LINKS
EXAMPLE
a(6) = 37 - 29 = 8 because the partitions of 6 written in nondecreasing order are
.
. 6 = 6
. 3 - 3 = 0
. 2 - 4 = -2
. 2 - 2 + 2 = 2
. 1 - 5 = -4
. 1 - 2 + 3 = 2
. 1 - 1 + 4 = 4
. 1 - 1 + 2 - 2 = 0
. 1 - 1 + 1 - 3 = -2
. 1 - 1 + 1 - 1 + 2 = 2
. 1 - 1 + 1 - 1 + 1 - 1 = 0
----------------------------------
. 20 - 21 + 14 - 7 + 3 - 1 = 8
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Feb 12 2012
EXTENSIONS
More terms from Alois P. Heinz, Feb 12 2012
STATUS
approved