A383218 The product of the first n terms of A383217.

1, 2, 6, 24, 120, 720, 5760, 51840, 518400, 5702400, 68428800, 889574400, 12454041600, 186810624000, 2988969984000, 50812489728000, 914624815104000, 17377871486976000, 347557429739520000, 7298706024529920000, 160571532539658240000, 3693145248412139520000

Offset

1,2

Links

Dominic McCarty, Table of n, a(n) for n = 1..429

Prog

(Python)
from itertools import count
a, p = [1], 1
for k in count(2):
    if str(k) not in str(p): p *= k; a.append(p)
    if len(a) >= 20: break
print(a)

Crossrefs

Cf. A383217, A033180.

Sequence in context: A350113 A129655 A114796 * A265086 A114790 A352430

Adjacent sequences: A383215 A383216 A383217 * A383219 A383220 A383221

Keyword

nonn,base

Author

Dominic McCarty, Apr 19 2025

Status

approved