78936

Appears in sequences

• Where A098018(k)=n.at n=14A098869
• Array T(n,m) = 2*(2m+3)!*(4n+2m+1)!/(m!*(m+2)!*n!*(3n+2m+3)!) read by antidiagonals.at n=41A146305
• The denominators of Zagier's modification of the Bernoulli numbers.at n=23A216923
• Numbers n such that n^2+k-1 is the sum of two nonzero squares in exactly k ways for all k = 1, 2, 3.at n=4A273341
• a(n) = K(5,n), where K(M,n) = 2*(2*M+3)!*(4*n+2*M+1)!/((M+2)!*M!*n!*(3*n+2*M+3)!).at n=3A362104
• Expansion of (1/x) * Series_Reversion( x * ((1-x)^2 + x^3) ).at n=8A371431