30956

Appears in sequences

• Number of partitions of floor(7n/2)-1 into n nonnegative integers each no greater than 7.at n=22A001980
• Number of rooted trees with a forbidden limb of length 5.at n=13A052328
• a(n) = Sum_{k=0..n} T(k)*T(n-k), where T is A000073; convolution of A000073 with itself.at n=18A073778
• Real part of absolute Gaussian perfect numbers, in order of increasing magnitude.at n=42A102531
• Number of (n+2) X 4 binary arrays avoiding patterns 001 and 110 in rows, columns and nw-to-se diagonals.at n=24A202441
• Number of n X 1 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.at n=8A210781
• T(n,k)=Number of nXk 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.at n=36A210788
• Numbers n = p * q, where n, p, and q together contain all 10 digits at least once.at n=25A253172