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A070564
Partial sums of A070563.
1
0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16
OFFSET
0,5
LINKS
P. Moree and H. J. J. te Riele, The hexagonal versus the square lattice, Math. Comp. 73 (2004), no. 245, 451-473.
CROSSREFS
Sequence in context: A276611 A238598 A156684 * A072358 A074795 A069577
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 07 2002
STATUS
approved