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A097699
Records in the numbers of antichains in the divisor lattice D(n) (A096827).
1
2, 3, 4, 6, 10, 15, 20, 21, 50, 105, 175, 196, 490, 887, 1176, 3490
OFFSET
1,1
COMMENTS
The divisor lattice D(n) is the lattice of the divisors of the natural number n. This sequence counts the empty set as an antichain.
CROSSREFS
Cf. A096827.
Sequence in context: A094861 A173473 A288807 * A086990 A090412 A073028
KEYWORD
nonn,more
AUTHOR
John W. Layman, Aug 20 2004
STATUS
approved