I recently learned this was originally a book! https://www.amazon.com/Encyclopedia-Integer-Sequences-N-Sloa...

also, the author, Neal Sloane is a regular on the youtube channel Numberphile, which always has fun patterns to discuss

Its first editions were in paper format:

http://www.amazon.com/Encyclopedia-Integer-Sequences-N-Sloan...

and the original, from 1973,

http://www.amazon.com/Handbook-Integer-Sequences-N-Sloane/dp...