30115

Appears in sequences

• 4-dimensional analog of centered polygonal numbers.at n=18A006322
• Diagonal sums of number triangle A108359.at n=17A108361
• a(n) = 5n^4 - 4n^3 + 3n^2 - 2n + 1.at n=9A131466
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 111-110-111 pattern in any orientation.at n=15A146286
• 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, 0), (-1, 1, 1), (0, 1, -1), (1, 0, 0), (1, 1, -1)}.at n=10A148389
• Expansion of x^4*(1-2*x+x^4)/((1+x)*(1-2*x)^2*(1-x-x^2)).at n=17A219753
• Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7.at n=39A258634