30827

Appears in sequences

• a(n) = 2^n - C(n,0) - ... - C(n,4).at n=15A002664
• a(n) = Sum_{k=0..10} binomial(n,k).at n=15A008863
• Number of + signs needed to write the partitions of n (A000041) as sums.at n=28A076276
• A hexagonal spiral Fibonacci sequence.at n=21A094925
• 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), (-1, 0, 0), (0, 1, 0), (1, 0, -1), (1, 0, 0)}.at n=9A149923
• Number of planar n X n X n binary triangular grids with no more than 10 ones in any 5 X 5 X 5 subtriangle.at n=5A153544
• Number of planar n X n X n binary triangular grids with no more than 10 ones in any similarly oriented 5 X 5 X 5 subtriangle.at n=5A153572
• Augmentation of the Catalan triangle, A009766. See Comments.at n=33A193560