A172642 Number of n X 4 0..2 arrays with row sums 4 and column sums n.
1, 19, 175, 2371, 32611, 481381, 7343449, 115321795, 1849858771, 30189264889, 499616140189, 8365213132981, 141444270208645, 2411829493241299, 41425627536496495, 716068213864217155, 12447291755448613315
Offset: 1
Keywords
Links
- R. H. Hardin, Table of n, a(n) for n=1..99