31580

Appears in sequences

• Expansion of tan(sin(log(1+x))).at n=9A009656
• Convolution of the lower and upper Wythoff sequences (A000201 and A001950).at n=34A023664
• A version of F. K. Hwang's sequence in {3*k, 3*k+1, 3*k+2}.at n=41A123945
• Floor-Sqrt transform of involution numbers (A000085).at n=18A192677
• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=28A227265
• Expansion of 1/(1 - Sum_{k = i^j, i>=1, j>=2} x^k).at n=30A282500
• Number of integer compositions of n whose leaders of weakly decreasing runs are strictly decreasing.at n=22A374746