A268421 - cp's OEIS frontend

A268421 Number of nX4 0..3 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

n	a(n)
1	12
2	2191
3	494098
4	92967597
5	15615613747
6	2414369699870
7	350815694801710
8	48579100267639483
9	6474432977080854160
10	836528598526349043093
11	105356335957177414141417
12	12989039321265021304747296

[12, 2191, 494098, 92967597, 15615613747, 2414369699870, 350815694801710, 48579100267639483, 6474432977080854160, 836528598526349043093, 105356335957177414141417, 12989039321265021304747296]

cp's OEIS Frontend

A268421 Number of nX4 0..3 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

Table of values

List of values