OFFSET
1,6
LINKS
Pontus von Brömssen, Table of n, a(n) for n = 1..10000
EXAMPLE
The first occurrence of 6 in Pascal's triangle is in row 4 = A058084(6) and binomial(4,2) = 6, so a(6) = 2.
PROG
(PARI) a(n) = my(k=0); while (!vecsearch(vector((k+2)\2, i, binomial(k, i-1)), n), k++); select(x->(x==n), vector((k+2)\2, i, binomial(k, i-1)), 1)[1] - 1; \\ Michel Marcus, Sep 24 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
Pontus von Brömssen, Sep 24 2022
STATUS
approved