A034804 - cp's OEIS frontend

A034804 Consider the sequence of 4-tuples {0,a,b,c} (c>=a+b; a,b,c>0) which have the smallest integer 'c' required to reach {k,k,k,k} in n steps under map {r,s,t,u}->{|r-s|,|s-t|,|t-u|,|u-r|}. This sequence gives the third term 'b' of these quadruples.

n	a(n)
1	0
2	1
3	0
4	2
5	1
6	2
7	4
8	5
9	6
10	14
11	17
12	20
13	48
14	57
15	68
16	162
17	193
18	230
19	548
20	653
21	778
22	1854
23	2209
24	2632
25	6272
26	7473
27	8904
28	21218
29	25281
30	30122
31	71780
32	85525
33	101902
34	242830
35	289329
36	344732
37	821488
38	978793
39	1166220
40	2779074
41	3311233
42	3945294
43	9401540

[0, 1, 0, 2, 1, 2, 4, 5, 6, 14, 17, 20, 48, 57, 68, 162, 193, 230, 548, 653, 778, 1854, 2209, 2632, 6272, 7473, 8904, 21218, 25281, 30122, 71780, 85525, 101902, 242830, 289329, 344732, 821488, 978793, 1166220, 2779074, 3311233, 3945294, 9401540]

cp's OEIS Frontend

A034804 Consider the sequence of 4-tuples {0,a,b,c} (c>=a+b; a,b,c>0) which have the smallest integer 'c' required to reach {k,k,k,k} in n steps under map {r,s,t,u}->{|r-s|,|s-t|,|t-u|,|u-r|}. This sequence gives the third term 'b' of these quadruples.

Table of values

List of values