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A049647
a(n) = T(n,n+2), array T given by A049639.
0
1, 1, 4, 4, 7, 7, 11, 11, 17, 17, 23, 23, 31, 31, 41, 41, 51, 51, 61, 61, 75, 75, 89, 89, 105, 105, 123, 123, 137, 137, 153, 153, 177, 177, 199, 199, 223, 223, 249, 249, 269, 269, 291, 291, 323, 323, 353, 353, 381, 381, 413, 413, 443, 443, 473, 473, 513, 513
OFFSET
0,3
CROSSREFS
Sequence in context: A147814 A168233 A238391 * A263619 A046538 A353713
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Aug 06 2021
STATUS
approved