A331800 - cp's OEIS frontend

A331800 a(1) = 1; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2a(i) nor Sum_{j=1..n-1} ( b_ja(j) ) where 0 < i < n, b_j = 0 or 1.

n	a(n)
1	1
2	3
3	5
4	7
5	17
6	19
7	50
8	64
9	152
10	190
11	470
12	598
13	1448
14	1828
15	4472
16	5668
17	13796
18	17452
19	42584
20	53920
21	131408
22	166312
23	405560
24	513400
25	1251584
26	1584208
27	3862592
28	4889392
29	11920400
30	15088816
31	36788000
32	46566784
33	113532416
34	143710048
35	350376032
36	443509600
37	1081305728

[1, 3, 5, 7, 17, 19, 50, 64, 152, 190, 470, 598, 1448, 1828, 4472, 5668, 13796, 17452, 42584, 53920, 131408, 166312, 405560, 513400, 1251584, 1584208, 3862592, 4889392, 11920400, 15088816, 36788000, 46566784, 113532416, 143710048, 350376032, 443509600, 1081305728]

cp's OEIS Frontend

A331800 a(1) = 1; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2a(i) nor Sum_{j=1..n-1} ( b_ja(j) ) where 0 < i < n, b_j = 0 or 1.

Table of values

List of values

cp's OEIS Frontend

A331800 a(1) = 1; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2*a(i) nor Sum_{j=1..n-1} ( b_j*a(j) ) where 0 < i < n, b_j = 0 or 1.

Table of values

List of values

A331800 a(1) = 1; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2a(i) nor Sum_{j=1..n-1} ( b_ja(j) ) where 0 < i < n, b_j = 0 or 1.