OFFSET
1,3
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..8192 (computed by using the b-files of A056239 and A243503)
Eric Weisstein's World of Mathematics, Pairing Function
FORMULA
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 14 2017
STATUS
approved