102501

Appears in sequences

• Vertically symmetrical dates MMDDYY ("condensed American notation") considered as numbers, in increasing order.at n=1A107274
• Number of days after Jan 01 1000 such that the date written in the ISO-8601-format YYYYMMDD is palindromic.at n=34A210883
• a(n) = 5^n*sum_{i=1..n} i^5/5^i.at n=6A218376
• a(n) = (1/n^2) * Sum_{k=0..n-1} (2k+1)*S(k,n)^2, where S(k,x) denotes the polynomial Sum_{j=0..k} binomial(k,j)*binomial(x,j)*binomial(x+j,j).at n=3A260667
• Numerators of coefficients of z^n for the expansion of Fricke's hypergeometric function F_1(1/2,1/2;z).at n=5A274655