OFFSET
1,2
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
Popular Computing (Calabasas, CA), A Coding Exercise (from a suggestion by R. W. Hamming), Vol. 5 (No. 54, Sep 1977), p. PC55-18. [Asks what is a(n)?]
PROG
(Python)
A256967_list, x, d, f1, f2 = [], 1, 1, 1, 0
for _ in range(20):
....for i in range(f1):
........A256967_list.append(x)
........x += d
....d += 1
....f1, f2 = f1 + f2, f1
# Chai Wah Wu, Apr 19 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 16 2015
STATUS
approved