37148

Appears in sequences

• a(n) is the concatenation of n and 4n.at n=36A019552
• Number of terms in n-th derivative of a function composed with itself 7 times.at n=10A024207
• Matrix 7th power of partition triangle A008284.at n=45A050301
• Expansion of f(q)*f(q^7)/(f(-q)*f(-q^7)) in powers of q where f() is a Ramanujan theta function.at n=41A123862
• a(1)=1, a(n)=a(n-1)+n^2 if n odd, a(n)=a(n-1)+ n^3 if n is even.at n=22A140149
• Number of 7-step one space at a time bishop's tours on an n X n board summed over all starting positions.at n=10A187160
• Number of terms in 10th derivative of a function composed with itself n times.at n=6A215628
• Number of nX5 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=5A241432
• T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=50A241435
• Number of 6Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=4A241440
• Numerator of (1+sigma(s)) / ((s+1)/2), where s is the square of n prime-shifted once (s = A003961(n)^2 = A003961(n^2)).at n=51A337338
• a(n) = 4*n^3 + 5*n - 1.at n=20A383854