99100

Appears in sequences

• Partition the concatenation 1234567...of natural numbers into successive strings which are even, all different and > 2. (0 never taken as the most significant digit.)at n=62A077295
• Nontrivial slowest increasing sequence whose succession of digits is that of the nonnegative integers.at n=50A098080
• a(n) = n^5 - n^3 + n^2.at n=10A133071
• Row sums of exponential Riordan array [1+x*tan(x/2),x], A166353.at n=13A166354
• Concatenation of the decimal digits of n^2-1 and n^2.at n=10A215268
• Numbers k such that Bernoulli number B_{k} has denominator 33330.at n=33A295589
• List the positive integers but erase commas between terms if the digits just before and just after the comma have the same parity.at n=53A365822