In this post we prove the formula for the sum of the reciprocals of the central binomial coefficients :

(Of course, the sum of the central binomial coefficients themselves does not converge.) 108 more words

In this post we prove the formula for the sum of the reciprocals of the central binomial coefficients :

(Of course, the sum of the central binomial coefficients themselves does not converge.) 108 more words

*Dobinski’s formula* entails the following infinite series expression for the *n*th Bell number :

In this post we’ll work through a proof of Dobinski’s formula. 97 more words

The 26th term of an arithmetic sequence is 85, and the 16th term is 55.

Find the first term and the common difference.

- Name u1 the first term and d the common difference… 55 more words

The *Fibonacci sequence* is a famous sequence of numbers that starts 1, 1, 2, 3, 5, 8, 13, 21, and continues forever. Each number in the sequence is the sum of the two previous numbers in the sequence. 711 more words

Recently my pastor posed a problem to me: How to calculate his SECA offset? The answer can be found using algebra or using infinite series. (For the non-math inclined, skip to the bottom of this post for an answer.) 642 more words

As I hope you’ve noticed there is a new pull-down on the navigation bar called “Website.” For some years I’ve had a website at linmcmullin.net that lately I’ve been neglecting. 203 more words

If we extend the series beyond 20 numbers

4, 4, 8, 2, 0, 2, 2, 4, 6, 0, 6, 6, 2, 8, 0, 8, 8, 6, 4, 0, 4, 4, 8, 2, 0, … 28 more words