30974

Appears in sequences

• Number of 3 X n binary matrices up to row and column permutations.at n=15A002727
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.at n=9A150034
• Record gaps between Chebyshev primes (of index 1).at n=15A196672
• G.f.: (1+x)^(2*g)*(1+x^3)^(3*g)/((1-x^2)*(1-x^4))-x^(2*g)*(1+x)^4/((1-x^2)*(1-x^4)) for g=3.at n=21A199629
• Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=13A259002
• Number of separable partitions of n in which the number of distinct (repeatable) parts <= 6.at n=40A325715