A003985 Triangle with subscripts (1,1),(2,1),(1,2),(3,1),(2,2),(1,3), etc. in which entry (i,j) is i AND j.

1, 0, 0, 1, 2, 1, 0, 2, 2, 0, 1, 0, 3, 0, 1, 0, 0, 0, 0, 0, 0, 1, 2, 1, 4, 1, 2, 1, 0, 2, 2, 4, 4, 2, 2, 0, 1, 0, 3, 4, 5, 4, 3, 0, 1, 0, 0, 0, 4, 4, 4, 4, 0, 0, 0, 1, 2, 1, 0, 5, 6, 5, 0, 1, 2, 1, 0, 2, 2, 0, 0, 6, 6, 0, 0, 2, 2, 0, 1, 0, 3, 0, 1, 0, 7, 0, 1, 0, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset

1,5

Links

Table of n, a(n) for n=1..105.

Crossrefs

Antidiagonal sums are in A006581.

Sequence in context: A000925 A258279 A258292 * A328948 A287524 A157237

Adjacent sequences: A003982 A003983 A003984 * A003986 A003987 A003988

Keyword

tabl,nonn,easy

Author

Marc LeBrun

Extensions

More terms from Larry Reeves (larryr(AT)acm.org), Sep 21 2000

Status

approved